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Finding the Fourth Proportional to 615,672.30, 923,600.79 and 216,242.67

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Solution

The fourth proportional to 615,672.30, 923,600.79 and 216,242.67 is: 324,396.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,672.30 : 923,600.79 = 216,242.67 : x
  2. Step 2: Convert to fraction form
    615,672.30/923,600.79 = 216,242.67/x
  3. Step 3: Cross multiply
    615,672.30x = 923,600.79 × 216,242.67
  4. Step 4: Simplify right side
    615,672.30x = 199,721,900,843.71
  5. Step 5: Solve for x
    x = 199,721,900,843.71/615,672.30
  6. Step 6: Final answer
    x = 324,396.44

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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.