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Finding the Fourth Proportional to 408,550.56, 563,799.72 and 229,702.56

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Solution

The fourth proportional to 408,550.56, 563,799.72 and 229,702.56 is: 316,989.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,550.56 : 563,799.72 = 229,702.56 : x
  2. Step 2: Convert to fraction form
    408,550.56/563,799.72 = 229,702.56/x
  3. Step 3: Cross multiply
    408,550.56x = 563,799.72 × 229,702.56
  4. Step 4: Simplify right side
    408,550.56x = 129,506,239,011.28
  5. Step 5: Solve for x
    x = 129,506,239,011.28/408,550.56
  6. Step 6: Final answer
    x = 316,989.50

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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.