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Finding the Fourth Proportional to 416.55, 574.92 and 292.40

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Solution

The fourth proportional to 416.55, 574.92 and 292.40 is: 403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.55 : 574.92 = 292.40 : x
  2. Step 2: Convert to fraction form
    416.55/574.92 = 292.40/x
  3. Step 3: Cross multiply
    416.55x = 574.92 × 292.40
  4. Step 4: Simplify right side
    416.55x = 168,106.61
  5. Step 5: Solve for x
    x = 168,106.61/416.55
  6. Step 6: Final answer
    x = 403.57

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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.