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Finding the Fourth Proportional to 460.51, 691.02 and 265.79

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Solution

The fourth proportional to 460.51, 691.02 and 265.79 is: 398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.51 : 691.02 = 265.79 : x
  2. Step 2: Convert to fraction form
    460.51/691.02 = 265.79/x
  3. Step 3: Cross multiply
    460.51x = 691.02 × 265.79
  4. Step 4: Simplify right side
    460.51x = 183,662.75
  5. Step 5: Solve for x
    x = 183,662.75/460.51
  6. Step 6: Final answer
    x = 398.83

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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.