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Finding the Fourth Proportional to 1,168.49, 1,752.77 and 346.75

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Solution

The fourth proportional to 1,168.49, 1,752.77 and 346.75 is: 520.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.49 : 1,752.77 = 346.75 : x
  2. Step 2: Convert to fraction form
    1,168.49/1,752.77 = 346.75/x
  3. Step 3: Cross multiply
    1,168.49x = 1,752.77 × 346.75
  4. Step 4: Simplify right side
    1,168.49x = 607,769.48
  5. Step 5: Solve for x
    x = 607,769.48/1,168.49
  6. Step 6: Final answer
    x = 520.13

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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.