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Finding the Fourth Proportional to 1,170.64, 1,755.82 and 348.92

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Solution

The fourth proportional to 1,170.64, 1,755.82 and 348.92 is: 523.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.64 : 1,755.82 = 348.92 : x
  2. Step 2: Convert to fraction form
    1,170.64/1,755.82 = 348.92/x
  3. Step 3: Cross multiply
    1,170.64x = 1,755.82 × 348.92
  4. Step 4: Simplify right side
    1,170.64x = 612,640.71
  5. Step 5: Solve for x
    x = 612,640.71/1,170.64
  6. Step 6: Final answer
    x = 523.34

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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.