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Finding the Fourth Proportional to 652.61, 977.16 and 343.82

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Solution

The fourth proportional to 652.61, 977.16 and 343.82 is: 514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.61 : 977.16 = 343.82 : x
  2. Step 2: Convert to fraction form
    652.61/977.16 = 343.82/x
  3. Step 3: Cross multiply
    652.61x = 977.16 × 343.82
  4. Step 4: Simplify right side
    652.61x = 335,967.15
  5. Step 5: Solve for x
    x = 335,967.15/652.61
  6. Step 6: Final answer
    x = 514.81

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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.