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Finding the Fourth Proportional to 277,290.54, 382,659.39 and 156,432.87

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Solution

The fourth proportional to 277,290.54, 382,659.39 and 156,432.87 is: 215,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,290.54 : 382,659.39 = 156,432.87 : x
  2. Step 2: Convert to fraction form
    277,290.54/382,659.39 = 156,432.87/x
  3. Step 3: Cross multiply
    277,290.54x = 382,659.39 × 156,432.87
  4. Step 4: Simplify right side
    277,290.54x = 59,860,506,610.15
  5. Step 5: Solve for x
    x = 59,860,506,610.15/277,290.54
  6. Step 6: Final answer
    x = 215,876.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.