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Finding the Fourth Proportional to 581,010.60, 871,515.90 and 160,285.80

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Solution

The fourth proportional to 581,010.60, 871,515.90 and 160,285.80 is: 240,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,010.60 : 871,515.90 = 160,285.80 : x
  2. Step 2: Convert to fraction form
    581,010.60/871,515.90 = 160,285.80/x
  3. Step 3: Cross multiply
    581,010.60x = 871,515.90 × 160,285.80
  4. Step 4: Simplify right side
    581,010.60x = 139,691,623,244.22
  5. Step 5: Solve for x
    x = 139,691,623,244.22/581,010.60
  6. Step 6: Final answer
    x = 240,428.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.