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Finding the Fourth Proportional to 1,160.38, 1,740.43 and 294.63

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Solution

The fourth proportional to 1,160.38, 1,740.43 and 294.63 is: 441.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.38 : 1,740.43 = 294.63 : x
  2. Step 2: Convert to fraction form
    1,160.38/1,740.43 = 294.63/x
  3. Step 3: Cross multiply
    1,160.38x = 1,740.43 × 294.63
  4. Step 4: Simplify right side
    1,160.38x = 512,782.89
  5. Step 5: Solve for x
    x = 512,782.89/1,160.38
  6. Step 6: Final answer
    x = 441.91

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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.