Home / 558,822.78-838,225.98-138,098.64

Finding the Fourth Proportional to 558,822.78, 838,225.98 and 138,098.64

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Solution

The fourth proportional to 558,822.78, 838,225.98 and 138,098.64 is: 207,145.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,822.78 : 838,225.98 = 138,098.64 : x
  2. Step 2: Convert to fraction form
    558,822.78/838,225.98 = 138,098.64/x
  3. Step 3: Cross multiply
    558,822.78x = 838,225.98 × 138,098.64
  4. Step 4: Simplify right side
    558,822.78x = 115,757,867,850.67
  5. Step 5: Solve for x
    x = 115,757,867,850.67/558,822.78
  6. Step 6: Final answer
    x = 207,145.94

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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.