Home / 278,966.04-384,991.02-156,469.92

Finding the Fourth Proportional to 278,966.04, 384,991.02 and 156,469.92

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Solution

The fourth proportional to 278,966.04, 384,991.02 and 156,469.92 is: 215,938.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,966.04 : 384,991.02 = 156,469.92 : x
  2. Step 2: Convert to fraction form
    278,966.04/384,991.02 = 156,469.92/x
  3. Step 3: Cross multiply
    278,966.04x = 384,991.02 × 156,469.92
  4. Step 4: Simplify right side
    278,966.04x = 60,239,514,100.12
  5. Step 5: Solve for x
    x = 60,239,514,100.12/278,966.04
  6. Step 6: Final answer
    x = 215,938.52

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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.