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Finding the Fourth Proportional to 658,693.50, 988,043.36 and 203,279.15

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Solution

The fourth proportional to 658,693.50, 988,043.36 and 203,279.15 is: 304,919.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,693.50 : 988,043.36 = 203,279.15 : x
  2. Step 2: Convert to fraction form
    658,693.50/988,043.36 = 203,279.15/x
  3. Step 3: Cross multiply
    658,693.50x = 988,043.36 × 203,279.15
  4. Step 4: Simplify right side
    658,693.50x = 200,848,608,427.33
  5. Step 5: Solve for x
    x = 200,848,608,427.33/658,693.50
  6. Step 6: Final answer
    x = 304,919.68

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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.