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Finding the Fourth Proportional to 442,937.78, 664,494.21 and 162,457.46

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Solution

The fourth proportional to 442,937.78, 664,494.21 and 162,457.46 is: 243,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,937.78 : 664,494.21 = 162,457.46 : x
  2. Step 2: Convert to fraction form
    442,937.78/664,494.21 = 162,457.46/x
  3. Step 3: Cross multiply
    442,937.78x = 664,494.21 × 162,457.46
  4. Step 4: Simplify right side
    442,937.78x = 107,952,041,541.31
  5. Step 5: Solve for x
    x = 107,952,041,541.31/442,937.78
  6. Step 6: Final answer
    x = 243,718.30

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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.