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Finding the Fourth Proportional to 219,337.20, 328,719.15 and 158,751.47

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Solution

The fourth proportional to 219,337.20, 328,719.15 and 158,751.47 is: 237,919.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,337.20 : 328,719.15 = 158,751.47 : x
  2. Step 2: Convert to fraction form
    219,337.20/328,719.15 = 158,751.47/x
  3. Step 3: Cross multiply
    219,337.20x = 328,719.15 × 158,751.47
  4. Step 4: Simplify right side
    219,337.20x = 52,184,647,252.40
  5. Step 5: Solve for x
    x = 52,184,647,252.40/219,337.20
  6. Step 6: Final answer
    x = 237,919.73

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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.