Home / 278,774.20-384,703.86-151,451.92

Finding the Fourth Proportional to 278,774.20, 384,703.86 and 151,451.92

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Solution

The fourth proportional to 278,774.20, 384,703.86 and 151,451.92 is: 209,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,774.20 : 384,703.86 = 151,451.92 : x
  2. Step 2: Convert to fraction form
    278,774.20/384,703.86 = 151,451.92/x
  3. Step 3: Cross multiply
    278,774.20x = 384,703.86 × 151,451.92
  4. Step 4: Simplify right side
    278,774.20x = 58,264,138,228.41
  5. Step 5: Solve for x
    x = 58,264,138,228.41/278,774.20
  6. Step 6: Final answer
    x = 209,001.19

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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.