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Finding the Fourth Proportional to 561,678.88, 842,518.32 and 187,701.88

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Solution

The fourth proportional to 561,678.88, 842,518.32 and 187,701.88 is: 281,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,678.88 : 842,518.32 = 187,701.88 : x
  2. Step 2: Convert to fraction form
    561,678.88/842,518.32 = 187,701.88/x
  3. Step 3: Cross multiply
    561,678.88x = 842,518.32 × 187,701.88
  4. Step 4: Simplify right side
    561,678.88x = 158,142,267,447.34
  5. Step 5: Solve for x
    x = 158,142,267,447.34/561,678.88
  6. Step 6: Final answer
    x = 281,552.81

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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.