Home / 277,331.91-415,999.07-87,793.20

Finding the Fourth Proportional to 277,331.91, 415,999.07 and 87,793.20

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Solution

The fourth proportional to 277,331.91, 415,999.07 and 87,793.20 is: 131,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,331.91 : 415,999.07 = 87,793.20 : x
  2. Step 2: Convert to fraction form
    277,331.91/415,999.07 = 87,793.20/x
  3. Step 3: Cross multiply
    277,331.91x = 415,999.07 × 87,793.20
  4. Step 4: Simplify right side
    277,331.91x = 36,521,889,442.58
  5. Step 5: Solve for x
    x = 36,521,889,442.58/277,331.91
  6. Step 6: Final answer
    x = 131,690.18

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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.