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Finding the Fourth Proportional to 313.67, 433.45 and 240.50

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Solution

The fourth proportional to 313.67, 433.45 and 240.50 is: 332.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.67 : 433.45 = 240.50 : x
  2. Step 2: Convert to fraction form
    313.67/433.45 = 240.50/x
  3. Step 3: Cross multiply
    313.67x = 433.45 × 240.50
  4. Step 4: Simplify right side
    313.67x = 104,244.73
  5. Step 5: Solve for x
    x = 104,244.73/313.67
  6. Step 6: Final answer
    x = 332.34

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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.