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Finding the Fourth Proportional to 408,359.32, 563,548.95 and 227,078.89

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Solution

The fourth proportional to 408,359.32, 563,548.95 and 227,078.89 is: 313,376.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,359.32 : 563,548.95 = 227,078.89 : x
  2. Step 2: Convert to fraction form
    408,359.32/563,548.95 = 227,078.89/x
  3. Step 3: Cross multiply
    408,359.32x = 563,548.95 × 227,078.89
  4. Step 4: Simplify right side
    408,359.32x = 127,970,068,060.47
  5. Step 5: Solve for x
    x = 127,970,068,060.47/408,359.32
  6. Step 6: Final answer
    x = 313,376.15

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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.