Home / 438,265.23-657,435.33-153,931.03

Finding the Fourth Proportional to 438,265.23, 657,435.33 and 153,931.03

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Solution

The fourth proportional to 438,265.23, 657,435.33 and 153,931.03 is: 230,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,265.23 : 657,435.33 = 153,931.03 : x
  2. Step 2: Convert to fraction form
    438,265.23/657,435.33 = 153,931.03/x
  3. Step 3: Cross multiply
    438,265.23x = 657,435.33 × 153,931.03
  4. Step 4: Simplify right side
    438,265.23x = 101,199,693,448.46
  5. Step 5: Solve for x
    x = 101,199,693,448.46/438,265.23
  6. Step 6: Final answer
    x = 230,909.70

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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.