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Finding the Fourth Proportional to 187,397.48, 280,645.80 and 107,192.30

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Solution

The fourth proportional to 187,397.48, 280,645.80 and 107,192.30 is: 160,530.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,397.48 : 280,645.80 = 107,192.30 : x
  2. Step 2: Convert to fraction form
    187,397.48/280,645.80 = 107,192.30/x
  3. Step 3: Cross multiply
    187,397.48x = 280,645.80 × 107,192.30
  4. Step 4: Simplify right side
    187,397.48x = 30,083,068,787.34
  5. Step 5: Solve for x
    x = 30,083,068,787.34/187,397.48
  6. Step 6: Final answer
    x = 160,530.81

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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.