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Finding the Fourth Proportional to 557,149.20, 835,410 and 177,980.88

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Solution

The fourth proportional to 557,149.20, 835,410 and 177,980.88 is: 266,871.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,149.20 : 835,410 = 177,980.88 : x
  2. Step 2: Convert to fraction form
    557,149.20/835,410 = 177,980.88/x
  3. Step 3: Cross multiply
    557,149.20x = 835,410 × 177,980.88
  4. Step 4: Simplify right side
    557,149.20x = 148,687,006,960.80
  5. Step 5: Solve for x
    x = 148,687,006,960.80/557,149.20
  6. Step 6: Final answer
    x = 266,871.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.