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Finding the Fourth Proportional to 1,166.34, 1,748.90 and 344.50

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Solution

The fourth proportional to 1,166.34, 1,748.90 and 344.50 is: 516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.34 : 1,748.90 = 344.50 : x
  2. Step 2: Convert to fraction form
    1,166.34/1,748.90 = 344.50/x
  3. Step 3: Cross multiply
    1,166.34x = 1,748.90 × 344.50
  4. Step 4: Simplify right side
    1,166.34x = 602,501.41
  5. Step 5: Solve for x
    x = 602,501.41/1,166.34
  6. Step 6: Final answer
    x = 516.57

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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.