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Finding the Fourth Proportional to 153,353.90, 230,129.19 and 74,425.10

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Solution

The fourth proportional to 153,353.90, 230,129.19 and 74,425.10 is: 111,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,353.90 : 230,129.19 = 74,425.10 : x
  2. Step 2: Convert to fraction form
    153,353.90/230,129.19 = 74,425.10/x
  3. Step 3: Cross multiply
    153,353.90x = 230,129.19 × 74,425.10
  4. Step 4: Simplify right side
    153,353.90x = 17,127,387,978.67
  5. Step 5: Solve for x
    x = 17,127,387,978.67/153,353.90
  6. Step 6: Final answer
    x = 111,685.38

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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.