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Finding the Fourth Proportional to 561,680.25, 842,520.38 and 187,703.25

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Solution

The fourth proportional to 561,680.25, 842,520.38 and 187,703.25 is: 281,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,680.25 : 842,520.38 = 187,703.25 : x
  2. Step 2: Convert to fraction form
    561,680.25/842,520.38 = 187,703.25/x
  3. Step 3: Cross multiply
    561,680.25x = 842,520.38 × 187,703.25
  4. Step 4: Simplify right side
    561,680.25x = 158,143,812,578.72
  5. Step 5: Solve for x
    x = 158,143,812,578.72/561,680.25
  6. Step 6: Final answer
    x = 281,554.88

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Similar ratio
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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.