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Finding the Fourth Proportional to 460.15, 688.97 and 344.66

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Solution

The fourth proportional to 460.15, 688.97 and 344.66 is: 516.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.15 : 688.97 = 344.66 : x
  2. Step 2: Convert to fraction form
    460.15/688.97 = 344.66/x
  3. Step 3: Cross multiply
    460.15x = 688.97 × 344.66
  4. Step 4: Simplify right side
    460.15x = 237,457.82
  5. Step 5: Solve for x
    x = 237,457.82/460.15
  6. Step 6: Final answer
    x = 516.05

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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.