Home / 187,266.80-280,900.20-172,103.60

Finding the Fourth Proportional to 187,266.80, 280,900.20 and 172,103.60

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Solution

The fourth proportional to 187,266.80, 280,900.20 and 172,103.60 is: 258,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,266.80 : 280,900.20 = 172,103.60 : x
  2. Step 2: Convert to fraction form
    187,266.80/280,900.20 = 172,103.60/x
  3. Step 3: Cross multiply
    187,266.80x = 280,900.20 × 172,103.60
  4. Step 4: Simplify right side
    187,266.80x = 48,343,935,660.72
  5. Step 5: Solve for x
    x = 48,343,935,660.72/187,266.80
  6. Step 6: Final answer
    x = 258,155.40

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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.