Home / 277,238.45-415,872.80-87,684.66

Finding the Fourth Proportional to 277,238.45, 415,872.80 and 87,684.66

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Solution

The fourth proportional to 277,238.45, 415,872.80 and 87,684.66 is: 131,531.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,238.45 : 415,872.80 = 87,684.66 : x
  2. Step 2: Convert to fraction form
    277,238.45/415,872.80 = 87,684.66/x
  3. Step 3: Cross multiply
    277,238.45x = 415,872.80 × 87,684.66
  4. Step 4: Simplify right side
    277,238.45x = 36,465,665,071.25
  5. Step 5: Solve for x
    x = 36,465,665,071.25/277,238.45
  6. Step 6: Final answer
    x = 131,531.77

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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.