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Finding the Fourth Proportional to 277,046.21, 415,592.88 and 87,455.85

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Solution

The fourth proportional to 277,046.21, 415,592.88 and 87,455.85 is: 131,191.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,046.21 : 415,592.88 = 87,455.85 : x
  2. Step 2: Convert to fraction form
    277,046.21/415,592.88 = 87,455.85/x
  3. Step 3: Cross multiply
    277,046.21x = 415,592.88 × 87,455.85
  4. Step 4: Simplify right side
    277,046.21x = 36,346,028,574.35
  5. Step 5: Solve for x
    x = 36,346,028,574.35/277,046.21
  6. Step 6: Final answer
    x = 131,191.22

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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.