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Finding the Fourth Proportional to 561,676.88, 842,515.32 and 187,699.88

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Solution

The fourth proportional to 561,676.88, 842,515.32 and 187,699.88 is: 281,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,676.88 : 842,515.32 = 187,699.88 : x
  2. Step 2: Convert to fraction form
    561,676.88/842,515.32 = 187,699.88/x
  3. Step 3: Cross multiply
    561,676.88x = 842,515.32 × 187,699.88
  4. Step 4: Simplify right side
    561,676.88x = 158,140,019,311.09
  5. Step 5: Solve for x
    x = 158,140,019,311.09/561,676.88
  6. Step 6: Final answer
    x = 281,549.81

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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.