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Finding the Fourth Proportional to 277,047.21, 415,594.38 and 87,456.85

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Solution

The fourth proportional to 277,047.21, 415,594.38 and 87,456.85 is: 131,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,047.21 : 415,594.38 = 87,456.85 : x
  2. Step 2: Convert to fraction form
    277,047.21/415,594.38 = 87,456.85/x
  3. Step 3: Cross multiply
    277,047.21x = 415,594.38 × 87,456.85
  4. Step 4: Simplify right side
    277,047.21x = 36,346,575,352.50
  5. Step 5: Solve for x
    x = 36,346,575,352.50/277,047.21
  6. Step 6: Final answer
    x = 131,192.71

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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.