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Finding the Fourth Proportional to 445,957.94, 615,422.35 and 242,008.86

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Solution

The fourth proportional to 445,957.94, 615,422.35 and 242,008.86 is: 333,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,957.94 : 615,422.35 = 242,008.86 : x
  2. Step 2: Convert to fraction form
    445,957.94/615,422.35 = 242,008.86/x
  3. Step 3: Cross multiply
    445,957.94x = 615,422.35 × 242,008.86
  4. Step 4: Simplify right side
    445,957.94x = 148,937,663,018.83
  5. Step 5: Solve for x
    x = 148,937,663,018.83/445,957.94
  6. Step 6: Final answer
    x = 333,972.44

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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.