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Finding the Fourth Proportional to 180,184.60, 270,276.90 and 86,699.80

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Solution

The fourth proportional to 180,184.60, 270,276.90 and 86,699.80 is: 130,049.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,184.60 : 270,276.90 = 86,699.80 : x
  2. Step 2: Convert to fraction form
    180,184.60/270,276.90 = 86,699.80/x
  3. Step 3: Cross multiply
    180,184.60x = 270,276.90 × 86,699.80
  4. Step 4: Simplify right side
    180,184.60x = 23,432,953,174.62
  5. Step 5: Solve for x
    x = 23,432,953,174.62/180,184.60
  6. Step 6: Final answer
    x = 130,049.70

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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.