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Finding the Fourth Proportional to 615,615.44, 923,475.80 and 216,221.44

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Solution

The fourth proportional to 615,615.44, 923,475.80 and 216,221.44 is: 324,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,615.44 : 923,475.80 = 216,221.44 : x
  2. Step 2: Convert to fraction form
    615,615.44/923,475.80 = 216,221.44/x
  3. Step 3: Cross multiply
    615,615.44x = 923,475.80 × 216,221.44
  4. Step 4: Simplify right side
    615,615.44x = 199,675,267,281.15
  5. Step 5: Solve for x
    x = 199,675,267,281.15/615,615.44
  6. Step 6: Final answer
    x = 324,350.65

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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.