Home / 278,849.01-384,780.39-157,964.41

Finding the Fourth Proportional to 278,849.01, 384,780.39 and 157,964.41

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Solution

The fourth proportional to 278,849.01, 384,780.39 and 157,964.41 is: 217,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,849.01 : 384,780.39 = 157,964.41 : x
  2. Step 2: Convert to fraction form
    278,849.01/384,780.39 = 157,964.41/x
  3. Step 3: Cross multiply
    278,849.01x = 384,780.39 × 157,964.41
  4. Step 4: Simplify right side
    278,849.01x = 60,781,607,285.92
  5. Step 5: Solve for x
    x = 60,781,607,285.92/278,849.01
  6. Step 6: Final answer
    x = 217,973.19

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1.5x scale

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.