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Finding the Fourth Proportional to 463.80, 639.27 and 370.25

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Solution

The fourth proportional to 463.80, 639.27 and 370.25 is: 510.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.80 : 639.27 = 370.25 : x
  2. Step 2: Convert to fraction form
    463.80/639.27 = 370.25/x
  3. Step 3: Cross multiply
    463.80x = 639.27 × 370.25
  4. Step 4: Simplify right side
    463.80x = 236,686.63
  5. Step 5: Solve for x
    x = 236,686.63/463.80
  6. Step 6: Final answer
    x = 510.32

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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.