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Finding the Fourth Proportional to 218,650.57, 301,634.69 and 127,950.92

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Solution

The fourth proportional to 218,650.57, 301,634.69 and 127,950.92 is: 176,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,650.57 : 301,634.69 = 127,950.92 : x
  2. Step 2: Convert to fraction form
    218,650.57/301,634.69 = 127,950.92/x
  3. Step 3: Cross multiply
    218,650.57x = 301,634.69 × 127,950.92
  4. Step 4: Simplify right side
    218,650.57x = 38,594,435,072.62
  5. Step 5: Solve for x
    x = 38,594,435,072.62/218,650.57
  6. Step 6: Final answer
    x = 176,511.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.