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Finding the Fourth Proportional to 410.04, 615.01 and 121.46

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Solution

The fourth proportional to 410.04, 615.01 and 121.46 is: 182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.04 : 615.01 = 121.46 : x
  2. Step 2: Convert to fraction form
    410.04/615.01 = 121.46/x
  3. Step 3: Cross multiply
    410.04x = 615.01 × 121.46
  4. Step 4: Simplify right side
    410.04x = 74,695.74
  5. Step 5: Solve for x
    x = 74,695.74/410.04
  6. Step 6: Final answer
    x = 182.17

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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.