Home / 278,372.40-384,155.04-151,047.96

Finding the Fourth Proportional to 278,372.40, 384,155.04 and 151,047.96

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Solution

The fourth proportional to 278,372.40, 384,155.04 and 151,047.96 is: 208,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,372.40 : 384,155.04 = 151,047.96 : x
  2. Step 2: Convert to fraction form
    278,372.40/384,155.04 = 151,047.96/x
  3. Step 3: Cross multiply
    278,372.40x = 384,155.04 × 151,047.96
  4. Step 4: Simplify right side
    278,372.40x = 58,025,835,115.72
  5. Step 5: Solve for x
    x = 58,025,835,115.72/278,372.40
  6. Step 6: Final answer
    x = 208,446.80

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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.