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Finding the Fourth Proportional to 372,457.25, 558,691 and 106,217.79

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Solution

The fourth proportional to 372,457.25, 558,691 and 106,217.79 is: 159,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,457.25 : 558,691 = 106,217.79 : x
  2. Step 2: Convert to fraction form
    372,457.25/558,691 = 106,217.79/x
  3. Step 3: Cross multiply
    372,457.25x = 558,691 × 106,217.79
  4. Step 4: Simplify right side
    372,457.25x = 59,342,923,312.89
  5. Step 5: Solve for x
    x = 59,342,923,312.89/372,457.25
  6. Step 6: Final answer
    x = 159,328.15

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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.