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Finding the Fourth Proportional to 308,352.63, 425,657.81 and 187,532.73

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Solution

The fourth proportional to 308,352.63, 425,657.81 and 187,532.73 is: 258,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,352.63 : 425,657.81 = 187,532.73 : x
  2. Step 2: Convert to fraction form
    308,352.63/425,657.81 = 187,532.73/x
  3. Step 3: Cross multiply
    308,352.63x = 425,657.81 × 187,532.73
  4. Step 4: Simplify right side
    308,352.63x = 79,824,770,217.46
  5. Step 5: Solve for x
    x = 79,824,770,217.46/308,352.63
  6. Step 6: Final answer
    x = 258,874.95

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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.