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Finding the Fourth Proportional to 508.30, 701.46 and 275.43

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Solution

The fourth proportional to 508.30, 701.46 and 275.43 is: 380.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.30 : 701.46 = 275.43 : x
  2. Step 2: Convert to fraction form
    508.30/701.46 = 275.43/x
  3. Step 3: Cross multiply
    508.30x = 701.46 × 275.43
  4. Step 4: Simplify right side
    508.30x = 193,203.13
  5. Step 5: Solve for x
    x = 193,203.13/508.30
  6. Step 6: Final answer
    x = 380.10

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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.