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Finding the Fourth Proportional to 410.94, 615.06 and 225.59

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Solution

The fourth proportional to 410.94, 615.06 and 225.59 is: 337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.94 : 615.06 = 225.59 : x
  2. Step 2: Convert to fraction form
    410.94/615.06 = 225.59/x
  3. Step 3: Cross multiply
    410.94x = 615.06 × 225.59
  4. Step 4: Simplify right side
    410.94x = 138,748.31
  5. Step 5: Solve for x
    x = 138,748.31/410.94
  6. Step 6: Final answer
    x = 337.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.