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Finding the Fourth Proportional to 445,957.88, 615,422.27 and 242,008.80

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Solution

The fourth proportional to 445,957.88, 615,422.27 and 242,008.80 is: 333,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,957.88 : 615,422.27 = 242,008.80 : x
  2. Step 2: Convert to fraction form
    445,957.88/615,422.27 = 242,008.80/x
  3. Step 3: Cross multiply
    445,957.88x = 615,422.27 × 242,008.80
  4. Step 4: Simplify right side
    445,957.88x = 148,937,603,845.93
  5. Step 5: Solve for x
    x = 148,937,603,845.93/445,957.88
  6. Step 6: Final answer
    x = 333,972.36

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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.