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Finding the Fourth Proportional to 482,654.50, 666,160.13 and 278,738.62

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Solution

The fourth proportional to 482,654.50, 666,160.13 and 278,738.62 is: 384,715.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,654.50 : 666,160.13 = 278,738.62 : x
  2. Step 2: Convert to fraction form
    482,654.50/666,160.13 = 278,738.62/x
  3. Step 3: Cross multiply
    482,654.50x = 666,160.13 × 278,738.62
  4. Step 4: Simplify right side
    482,654.50x = 185,684,554,366.67
  5. Step 5: Solve for x
    x = 185,684,554,366.67/482,654.50
  6. Step 6: Final answer
    x = 384,715.27

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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.