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Finding the Fourth Proportional to 517,658.67, 776,450.85 and 162,774.18

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Solution

The fourth proportional to 517,658.67, 776,450.85 and 162,774.18 is: 244,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,658.67 : 776,450.85 = 162,774.18 : x
  2. Step 2: Convert to fraction form
    517,658.67/776,450.85 = 162,774.18/x
  3. Step 3: Cross multiply
    517,658.67x = 776,450.85 × 162,774.18
  4. Step 4: Simplify right side
    517,658.67x = 126,386,150,419.05
  5. Step 5: Solve for x
    x = 126,386,150,419.05/517,658.67
  6. Step 6: Final answer
    x = 244,149.59

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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.