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Finding the Fourth Proportional to 434.12, 598.96 and 276.76

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Solution

The fourth proportional to 434.12, 598.96 and 276.76 is: 381.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.12 : 598.96 = 276.76 : x
  2. Step 2: Convert to fraction form
    434.12/598.96 = 276.76/x
  3. Step 3: Cross multiply
    434.12x = 598.96 × 276.76
  4. Step 4: Simplify right side
    434.12x = 165,768.17
  5. Step 5: Solve for x
    x = 165,768.17/434.12
  6. Step 6: Final answer
    x = 381.85

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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.