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Finding the Fourth Proportional to 217,503.12, 299,981.16 and 179,711.76

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Solution

The fourth proportional to 217,503.12, 299,981.16 and 179,711.76 is: 247,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,503.12 : 299,981.16 = 179,711.76 : x
  2. Step 2: Convert to fraction form
    217,503.12/299,981.16 = 179,711.76/x
  3. Step 3: Cross multiply
    217,503.12x = 299,981.16 × 179,711.76
  4. Step 4: Simplify right side
    217,503.12x = 53,910,142,230.44
  5. Step 5: Solve for x
    x = 53,910,142,230.44/217,503.12
  6. Step 6: Final answer
    x = 247,859.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.