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Finding the Fourth Proportional to 558,825.80, 838,230.44 and 138,101.67

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Solution

The fourth proportional to 558,825.80, 838,230.44 and 138,101.67 is: 207,150.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,825.80 : 838,230.44 = 138,101.67 : x
  2. Step 2: Convert to fraction form
    558,825.80/838,230.44 = 138,101.67/x
  3. Step 3: Cross multiply
    558,825.80x = 838,230.44 × 138,101.67
  4. Step 4: Simplify right side
    558,825.80x = 115,761,022,918.33
  5. Step 5: Solve for x
    x = 115,761,022,918.33/558,825.80
  6. Step 6: Final answer
    x = 207,150.46

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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.