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Finding the Fourth Proportional to 308,284.78, 425,432.85 and 180,960.37

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Solution

The fourth proportional to 308,284.78, 425,432.85 and 180,960.37 is: 249,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,284.78 : 425,432.85 = 180,960.37 : x
  2. Step 2: Convert to fraction form
    308,284.78/425,432.85 = 180,960.37/x
  3. Step 3: Cross multiply
    308,284.78x = 425,432.85 × 180,960.37
  4. Step 4: Simplify right side
    308,284.78x = 76,986,485,946.15
  5. Step 5: Solve for x
    x = 76,986,485,946.15/308,284.78
  6. Step 6: Final answer
    x = 249,725.22

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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.