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Finding the Fourth Proportional to 414.20, 618.02 and 373.32

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Solution

The fourth proportional to 414.20, 618.02 and 373.32 is: 557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.20 : 618.02 = 373.32 : x
  2. Step 2: Convert to fraction form
    414.20/618.02 = 373.32/x
  3. Step 3: Cross multiply
    414.20x = 618.02 × 373.32
  4. Step 4: Simplify right side
    414.20x = 230,719.23
  5. Step 5: Solve for x
    x = 230,719.23/414.20
  6. Step 6: Final answer
    x = 557.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.