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Finding the Fourth Proportional to 292,877.65, 438,693.52 and 172,805.20

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Solution

The fourth proportional to 292,877.65, 438,693.52 and 172,805.20 is: 258,840.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,877.65 : 438,693.52 = 172,805.20 : x
  2. Step 2: Convert to fraction form
    292,877.65/438,693.52 = 172,805.20/x
  3. Step 3: Cross multiply
    292,877.65x = 438,693.52 × 172,805.20
  4. Step 4: Simplify right side
    292,877.65x = 75,808,520,257.57
  5. Step 5: Solve for x
    x = 75,808,520,257.57/292,877.65
  6. Step 6: Final answer
    x = 258,840.24

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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.