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Finding the Fourth Proportional to 649,642.20, 974,462.82 and 176,397

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Solution

The fourth proportional to 649,642.20, 974,462.82 and 176,397 is: 264,595.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,642.20 : 974,462.82 = 176,397 : x
  2. Step 2: Convert to fraction form
    649,642.20/974,462.82 = 176,397/x
  3. Step 3: Cross multiply
    649,642.20x = 974,462.82 × 176,397
  4. Step 4: Simplify right side
    649,642.20x = 171,892,318,059.54
  5. Step 5: Solve for x
    x = 171,892,318,059.54/649,642.20
  6. Step 6: Final answer
    x = 264,595.37

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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.