Home / 219,432.52-329,146.34-69,668.78

Finding the Fourth Proportional to 219,432.52, 329,146.34 and 69,668.78

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Solution

The fourth proportional to 219,432.52, 329,146.34 and 69,668.78 is: 104,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,432.52 : 329,146.34 = 69,668.78 : x
  2. Step 2: Convert to fraction form
    219,432.52/329,146.34 = 69,668.78/x
  3. Step 3: Cross multiply
    219,432.52x = 329,146.34 × 69,668.78
  4. Step 4: Simplify right side
    219,432.52x = 22,931,223,949.27
  5. Step 5: Solve for x
    x = 22,931,223,949.27/219,432.52
  6. Step 6: Final answer
    x = 104,502.40

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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.