Home / 438,646.13-658,032.02-135,066.03

Finding the Fourth Proportional to 438,646.13, 658,032.02 and 135,066.03

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Solution

The fourth proportional to 438,646.13, 658,032.02 and 135,066.03 is: 202,618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,646.13 : 658,032.02 = 135,066.03 : x
  2. Step 2: Convert to fraction form
    438,646.13/658,032.02 = 135,066.03/x
  3. Step 3: Cross multiply
    438,646.13x = 658,032.02 × 135,066.03
  4. Step 4: Simplify right side
    438,646.13x = 88,877,769,917.83
  5. Step 5: Solve for x
    x = 88,877,769,917.83/438,646.13
  6. Step 6: Final answer
    x = 202,618.38

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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.