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Finding the Fourth Proportional to 313.61, 432.77 and 182.70

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Solution

The fourth proportional to 313.61, 432.77 and 182.70 is: 252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.61 : 432.77 = 182.70 : x
  2. Step 2: Convert to fraction form
    313.61/432.77 = 182.70/x
  3. Step 3: Cross multiply
    313.61x = 432.77 × 182.70
  4. Step 4: Simplify right side
    313.61x = 79,064.92
  5. Step 5: Solve for x
    x = 79,064.92/313.61
  6. Step 6: Final answer
    x = 252.11

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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.