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Finding the Fourth Proportional to 425.54, 587.72 and 368.04

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Solution

The fourth proportional to 425.54, 587.72 and 368.04 is: 508.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.54 : 587.72 = 368.04 : x
  2. Step 2: Convert to fraction form
    425.54/587.72 = 368.04/x
  3. Step 3: Cross multiply
    425.54x = 587.72 × 368.04
  4. Step 4: Simplify right side
    425.54x = 216,304.47
  5. Step 5: Solve for x
    x = 216,304.47/425.54
  6. Step 6: Final answer
    x = 508.31

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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.