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Finding the Fourth Proportional to 345,472.97, 518,228.01 and 108,834.17

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Solution

The fourth proportional to 345,472.97, 518,228.01 and 108,834.17 is: 163,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,472.97 : 518,228.01 = 108,834.17 : x
  2. Step 2: Convert to fraction form
    345,472.97/518,228.01 = 108,834.17/x
  3. Step 3: Cross multiply
    345,472.97x = 518,228.01 × 108,834.17
  4. Step 4: Simplify right side
    345,472.97x = 56,400,912,747.96
  5. Step 5: Solve for x
    x = 56,400,912,747.96/345,472.97
  6. Step 6: Final answer
    x = 163,257.10

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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.