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Finding the Fourth Proportional to 1,160.27, 1,740.47 and 338.52

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Solution

The fourth proportional to 1,160.27, 1,740.47 and 338.52 is: 507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.27 : 1,740.47 = 338.52 : x
  2. Step 2: Convert to fraction form
    1,160.27/1,740.47 = 338.52/x
  3. Step 3: Cross multiply
    1,160.27x = 1,740.47 × 338.52
  4. Step 4: Simplify right side
    1,160.27x = 589,182.21
  5. Step 5: Solve for x
    x = 589,182.21/1,160.27
  6. Step 6: Final answer
    x = 507.80

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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.