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Finding the Fourth Proportional to 338,595.61, 508,059.92 and 136,183.69

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Solution

The fourth proportional to 338,595.61, 508,059.92 and 136,183.69 is: 204,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,595.61 : 508,059.92 = 136,183.69 : x
  2. Step 2: Convert to fraction form
    338,595.61/508,059.92 = 136,183.69/x
  3. Step 3: Cross multiply
    338,595.61x = 508,059.92 × 136,183.69
  4. Step 4: Simplify right side
    338,595.61x = 69,189,474,646.70
  5. Step 5: Solve for x
    x = 69,189,474,646.70/338,595.61
  6. Step 6: Final answer
    x = 204,342.50

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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.