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Finding the Fourth Proportional to 345,436.97, 518,174.01 and 108,798.17

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Solution

The fourth proportional to 345,436.97, 518,174.01 and 108,798.17 is: 163,203.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,436.97 : 518,174.01 = 108,798.17 : x
  2. Step 2: Convert to fraction form
    345,436.97/518,174.01 = 108,798.17/x
  3. Step 3: Cross multiply
    345,436.97x = 518,174.01 × 108,798.17
  4. Step 4: Simplify right side
    345,436.97x = 56,376,381,438.69
  5. Step 5: Solve for x
    x = 56,376,381,438.69/345,436.97
  6. Step 6: Final answer
    x = 163,203.09

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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.