Home / 278,956.41-384,961.21-151,632

Finding the Fourth Proportional to 278,956.41, 384,961.21 and 151,632

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Solution

The fourth proportional to 278,956.41, 384,961.21 and 151,632 is: 209,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,956.41 : 384,961.21 = 151,632 : x
  2. Step 2: Convert to fraction form
    278,956.41/384,961.21 = 151,632/x
  3. Step 3: Cross multiply
    278,956.41x = 384,961.21 × 151,632
  4. Step 4: Simplify right side
    278,956.41x = 58,372,437,815.64
  5. Step 5: Solve for x
    x = 58,372,437,815.64/278,956.41
  6. Step 6: Final answer
    x = 209,252.90

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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.