Home / 278,414.17-384,211.53-151,089.76

Finding the Fourth Proportional to 278,414.17, 384,211.53 and 151,089.76

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Solution

The fourth proportional to 278,414.17, 384,211.53 and 151,089.76 is: 208,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,414.17 : 384,211.53 = 151,089.76 : x
  2. Step 2: Convert to fraction form
    278,414.17/384,211.53 = 151,089.76/x
  3. Step 3: Cross multiply
    278,414.17x = 384,211.53 × 151,089.76
  4. Step 4: Simplify right side
    278,414.17x = 58,050,427,856.93
  5. Step 5: Solve for x
    x = 58,050,427,856.93/278,414.17
  6. Step 6: Final answer
    x = 208,503.86

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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.