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Finding the Fourth Proportional to 438,120.80, 604,565.75 and 254,310.61

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Solution

The fourth proportional to 438,120.80, 604,565.75 and 254,310.61 is: 350,924.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,120.80 : 604,565.75 = 254,310.61 : x
  2. Step 2: Convert to fraction form
    438,120.80/604,565.75 = 254,310.61/x
  3. Step 3: Cross multiply
    438,120.80x = 604,565.75 × 254,310.61
  4. Step 4: Simplify right side
    438,120.80x = 153,747,482,299.28
  5. Step 5: Solve for x
    x = 153,747,482,299.28/438,120.80
  6. Step 6: Final answer
    x = 350,924.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.