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Finding the Fourth Proportional to 374,101.80, 560,472.30 and 215,860.20

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Solution

The fourth proportional to 374,101.80, 560,472.30 and 215,860.20 is: 323,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,101.80 : 560,472.30 = 215,860.20 : x
  2. Step 2: Convert to fraction form
    374,101.80/560,472.30 = 215,860.20/x
  3. Step 3: Cross multiply
    374,101.80x = 560,472.30 × 215,860.20
  4. Step 4: Simplify right side
    374,101.80x = 120,983,662,772.46
  5. Step 5: Solve for x
    x = 120,983,662,772.46/374,101.80
  6. Step 6: Final answer
    x = 323,397.70

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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.