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Finding the Fourth Proportional to 371,569.65, 557,354.48 and 91,086.90

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Solution

The fourth proportional to 371,569.65, 557,354.48 and 91,086.90 is: 136,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,569.65 : 557,354.48 = 91,086.90 : x
  2. Step 2: Convert to fraction form
    371,569.65/557,354.48 = 91,086.90/x
  3. Step 3: Cross multiply
    371,569.65x = 557,354.48 × 91,086.90
  4. Step 4: Simplify right side
    371,569.65x = 50,767,691,328.88
  5. Step 5: Solve for x
    x = 50,767,691,328.88/371,569.65
  6. Step 6: Final answer
    x = 136,630.35

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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.