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Finding the Fourth Proportional to 452.57, 624.57 and 256.07

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Solution

The fourth proportional to 452.57, 624.57 and 256.07 is: 353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.57 : 624.57 = 256.07 : x
  2. Step 2: Convert to fraction form
    452.57/624.57 = 256.07/x
  3. Step 3: Cross multiply
    452.57x = 624.57 × 256.07
  4. Step 4: Simplify right side
    452.57x = 159,935.20
  5. Step 5: Solve for x
    x = 159,935.20/452.57
  6. Step 6: Final answer
    x = 353.40

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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.