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Finding the Fourth Proportional to 399,234.80, 598,332.20 and 162,301.04

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Solution

The fourth proportional to 399,234.80, 598,332.20 and 162,301.04 is: 243,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,234.80 : 598,332.20 = 162,301.04 : x
  2. Step 2: Convert to fraction form
    399,234.80/598,332.20 = 162,301.04/x
  3. Step 3: Cross multiply
    399,234.80x = 598,332.20 × 162,301.04
  4. Step 4: Simplify right side
    399,234.80x = 97,109,938,325.49
  5. Step 5: Solve for x
    x = 97,109,938,325.49/399,234.80
  6. Step 6: Final answer
    x = 243,240.16

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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.