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Finding the Fourth Proportional to 370,680.50, 555,385.88 and 202,318.90

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Solution

The fourth proportional to 370,680.50, 555,385.88 and 202,318.90 is: 303,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,680.50 : 555,385.88 = 202,318.90 : x
  2. Step 2: Convert to fraction form
    370,680.50/555,385.88 = 202,318.90/x
  3. Step 3: Cross multiply
    370,680.50x = 555,385.88 × 202,318.90
  4. Step 4: Simplify right side
    370,680.50x = 112,365,059,434.47
  5. Step 5: Solve for x
    x = 112,365,059,434.47/370,680.50
  6. Step 6: Final answer
    x = 303,131.83

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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.