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Finding the Fourth Proportional to 400,502.17, 600,658.35 and 147,645.28

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Solution

The fourth proportional to 400,502.17, 600,658.35 and 147,645.28 is: 221,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,502.17 : 600,658.35 = 147,645.28 : x
  2. Step 2: Convert to fraction form
    400,502.17/600,658.35 = 147,645.28/x
  3. Step 3: Cross multiply
    400,502.17x = 600,658.35 × 147,645.28
  4. Step 4: Simplify right side
    400,502.17x = 88,684,370,270.09
  5. Step 5: Solve for x
    x = 88,684,370,270.09/400,502.17
  6. Step 6: Final answer
    x = 221,432.93

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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.