Home / 558,824.78-838,228.98-138,100.64

Finding the Fourth Proportional to 558,824.78, 838,228.98 and 138,100.64

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Solution

The fourth proportional to 558,824.78, 838,228.98 and 138,100.64 is: 207,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,824.78 : 838,228.98 = 138,100.64 : x
  2. Step 2: Convert to fraction form
    558,824.78/838,228.98 = 138,100.64/x
  3. Step 3: Cross multiply
    558,824.78x = 838,228.98 × 138,100.64
  4. Step 4: Simplify right side
    558,824.78x = 115,759,958,604.55
  5. Step 5: Solve for x
    x = 115,759,958,604.55/558,824.78
  6. Step 6: Final answer
    x = 207,148.94

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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.