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Finding the Fourth Proportional to 219,953.12, 329,929.56 and 79,711.52

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Solution

The fourth proportional to 219,953.12, 329,929.56 and 79,711.52 is: 119,567.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,953.12 : 329,929.56 = 79,711.52 : x
  2. Step 2: Convert to fraction form
    219,953.12/329,929.56 = 79,711.52/x
  3. Step 3: Cross multiply
    219,953.12x = 329,929.56 × 79,711.52
  4. Step 4: Simplify right side
    219,953.12x = 26,299,186,720.53
  5. Step 5: Solve for x
    x = 26,299,186,720.53/219,953.12
  6. Step 6: Final answer
    x = 119,567.24

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1.5x scale

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.