Home / 221,612.50-332,604.72-115,061.86

Finding the Fourth Proportional to 221,612.50, 332,604.72 and 115,061.86

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Solution

The fourth proportional to 221,612.50, 332,604.72 and 115,061.86 is: 172,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,612.50 : 332,604.72 = 115,061.86 : x
  2. Step 2: Convert to fraction form
    221,612.50/332,604.72 = 115,061.86/x
  3. Step 3: Cross multiply
    221,612.50x = 332,604.72 × 115,061.86
  4. Step 4: Simplify right side
    221,612.50x = 38,270,117,727.98
  5. Step 5: Solve for x
    x = 38,270,117,727.98/221,612.50
  6. Step 6: Final answer
    x = 172,689.35

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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.