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Finding the Fourth Proportional to 553,491.93, 830,259.76 and 154,167.60

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Solution

The fourth proportional to 553,491.93, 830,259.76 and 154,167.60 is: 231,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,491.93 : 830,259.76 = 154,167.60 : x
  2. Step 2: Convert to fraction form
    553,491.93/830,259.76 = 154,167.60/x
  3. Step 3: Cross multiply
    553,491.93x = 830,259.76 × 154,167.60
  4. Step 4: Simplify right side
    553,491.93x = 127,999,154,575.78
  5. Step 5: Solve for x
    x = 127,999,154,575.78/553,491.93
  6. Step 6: Final answer
    x = 231,257.49

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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.