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Finding the Fourth Proportional to 445,843.17, 615,263.58 and 254,860.83

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Solution

The fourth proportional to 445,843.17, 615,263.58 and 254,860.83 is: 351,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,843.17 : 615,263.58 = 254,860.83 : x
  2. Step 2: Convert to fraction form
    445,843.17/615,263.58 = 254,860.83/x
  3. Step 3: Cross multiply
    445,843.17x = 615,263.58 × 254,860.83
  4. Step 4: Simplify right side
    445,843.17x = 156,806,586,667.57
  5. Step 5: Solve for x
    x = 156,806,586,667.57/445,843.17
  6. Step 6: Final answer
    x = 351,707.95

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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.