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Finding the Fourth Proportional to 618.34, 925.56 and 374.08

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Solution

The fourth proportional to 618.34, 925.56 and 374.08 is: 559.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.34 : 925.56 = 374.08 : x
  2. Step 2: Convert to fraction form
    618.34/925.56 = 374.08/x
  3. Step 3: Cross multiply
    618.34x = 925.56 × 374.08
  4. Step 4: Simplify right side
    618.34x = 346,233.48
  5. Step 5: Solve for x
    x = 346,233.48/618.34
  6. Step 6: Final answer
    x = 559.94

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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.