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Finding the Fourth Proportional to 456.77, 630.29 and 270.26

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Solution

The fourth proportional to 456.77, 630.29 and 270.26 is: 372.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.77 : 630.29 = 270.26 : x
  2. Step 2: Convert to fraction form
    456.77/630.29 = 270.26/x
  3. Step 3: Cross multiply
    456.77x = 630.29 × 270.26
  4. Step 4: Simplify right side
    456.77x = 170,344.85
  5. Step 5: Solve for x
    x = 170,344.85/456.77
  6. Step 6: Final answer
    x = 372.94

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Find fourth proportional to 228.38, 315.14 and 135.13
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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.