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Finding the Fourth Proportional to 187,079.80, 280,619.70 and 166,862.20

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Solution

The fourth proportional to 187,079.80, 280,619.70 and 166,862.20 is: 250,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,079.80 : 280,619.70 = 166,862.20 : x
  2. Step 2: Convert to fraction form
    187,079.80/280,619.70 = 166,862.20/x
  3. Step 3: Cross multiply
    187,079.80x = 280,619.70 × 166,862.20
  4. Step 4: Simplify right side
    187,079.80x = 46,824,820,505.34
  5. Step 5: Solve for x
    x = 46,824,820,505.34/187,079.80
  6. Step 6: Final answer
    x = 250,293.30

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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.