Home / 438,781.20-658,241.37-168,899.91

Finding the Fourth Proportional to 438,781.20, 658,241.37 and 168,899.91

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Solution

The fourth proportional to 438,781.20, 658,241.37 and 168,899.91 is: 253,376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,781.20 : 658,241.37 = 168,899.91 : x
  2. Step 2: Convert to fraction form
    438,781.20/658,241.37 = 168,899.91/x
  3. Step 3: Cross multiply
    438,781.20x = 658,241.37 × 168,899.91
  4. Step 4: Simplify right side
    438,781.20x = 111,176,908,151.28
  5. Step 5: Solve for x
    x = 111,176,908,151.28/438,781.20
  6. Step 6: Final answer
    x = 253,376.64

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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.