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Finding the Fourth Proportional to 306,684.47, 423,196.57 and 179,337.89

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Solution

The fourth proportional to 306,684.47, 423,196.57 and 179,337.89 is: 247,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,684.47 : 423,196.57 = 179,337.89 : x
  2. Step 2: Convert to fraction form
    306,684.47/423,196.57 = 179,337.89/x
  3. Step 3: Cross multiply
    306,684.47x = 423,196.57 × 179,337.89
  4. Step 4: Simplify right side
    306,684.47x = 75,895,179,919.04
  5. Step 5: Solve for x
    x = 75,895,179,919.04/306,684.47
  6. Step 6: Final answer
    x = 247,469.92

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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.