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Finding the Fourth Proportional to 460.34, 689.26 and 265.18

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Solution

The fourth proportional to 460.34, 689.26 and 265.18 is: 397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.34 : 689.26 = 265.18 : x
  2. Step 2: Convert to fraction form
    460.34/689.26 = 265.18/x
  3. Step 3: Cross multiply
    460.34x = 689.26 × 265.18
  4. Step 4: Simplify right side
    460.34x = 182,777.97
  5. Step 5: Solve for x
    x = 182,777.97/460.34
  6. Step 6: Final answer
    x = 397.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.