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Finding the Fourth Proportional to 366,871.32, 550,214.58 and 142,154.52

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Solution

The fourth proportional to 366,871.32, 550,214.58 and 142,154.52 is: 213,195.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,871.32 : 550,214.58 = 142,154.52 : x
  2. Step 2: Convert to fraction form
    366,871.32/550,214.58 = 142,154.52/x
  3. Step 3: Cross multiply
    366,871.32x = 550,214.58 × 142,154.52
  4. Step 4: Simplify right side
    366,871.32x = 78,215,489,516.90
  5. Step 5: Solve for x
    x = 78,215,489,516.90/366,871.32
  6. Step 6: Final answer
    x = 213,195.98

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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.