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Finding the Fourth Proportional to 219,752.48, 329,433.28 and 79,479.92

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Solution

The fourth proportional to 219,752.48, 329,433.28 and 79,479.92 is: 119,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,752.48 : 329,433.28 = 79,479.92 : x
  2. Step 2: Convert to fraction form
    219,752.48/329,433.28 = 79,479.92/x
  3. Step 3: Cross multiply
    219,752.48x = 329,433.28 × 79,479.92
  4. Step 4: Simplify right side
    219,752.48x = 26,183,330,739.74
  5. Step 5: Solve for x
    x = 26,183,330,739.74/219,752.48
  6. Step 6: Final answer
    x = 119,149.19

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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.