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Finding the Fourth Proportional to 187,260.20, 280,890.30 and 178,512.20

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Solution

The fourth proportional to 187,260.20, 280,890.30 and 178,512.20 is: 267,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,260.20 : 280,890.30 = 178,512.20 : x
  2. Step 2: Convert to fraction form
    187,260.20/280,890.30 = 178,512.20/x
  3. Step 3: Cross multiply
    187,260.20x = 280,890.30 × 178,512.20
  4. Step 4: Simplify right side
    187,260.20x = 50,142,345,411.66
  5. Step 5: Solve for x
    x = 50,142,345,411.66/187,260.20
  6. Step 6: Final answer
    x = 267,768.30

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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.