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Finding the Fourth Proportional to 181,657.20, 272,485.80 and 135,001.20

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Solution

The fourth proportional to 181,657.20, 272,485.80 and 135,001.20 is: 202,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,657.20 : 272,485.80 = 135,001.20 : x
  2. Step 2: Convert to fraction form
    181,657.20/272,485.80 = 135,001.20/x
  3. Step 3: Cross multiply
    181,657.20x = 272,485.80 × 135,001.20
  4. Step 4: Simplify right side
    181,657.20x = 36,785,909,982.96
  5. Step 5: Solve for x
    x = 36,785,909,982.96/181,657.20
  6. Step 6: Final answer
    x = 202,501.80

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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.