Home / 1,112.60-1,669.13-332.66

Finding the Fourth Proportional to 1,112.60, 1,669.13 and 332.66

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Solution

The fourth proportional to 1,112.60, 1,669.13 and 332.66 is: 499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.60 : 1,669.13 = 332.66 : x
  2. Step 2: Convert to fraction form
    1,112.60/1,669.13 = 332.66/x
  3. Step 3: Cross multiply
    1,112.60x = 1,669.13 × 332.66
  4. Step 4: Simplify right side
    1,112.60x = 555,247.78
  5. Step 5: Solve for x
    x = 555,247.78/1,112.60
  6. Step 6: Final answer
    x = 499.06

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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.