Home / 558,820.27-838,222.21-138,096.15

Finding the Fourth Proportional to 558,820.27, 838,222.21 and 138,096.15

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Solution

The fourth proportional to 558,820.27, 838,222.21 and 138,096.15 is: 207,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,820.27 : 838,222.21 = 138,096.15 : x
  2. Step 2: Convert to fraction form
    558,820.27/838,222.21 = 138,096.15/x
  3. Step 3: Cross multiply
    558,820.27x = 838,222.21 × 138,096.15
  4. Step 4: Simplify right side
    558,820.27x = 115,755,260,045.49
  5. Step 5: Solve for x
    x = 115,755,260,045.49/558,820.27
  6. Step 6: Final answer
    x = 207,142.20

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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.