Home / 1,306.18-1,959.22-332.31

Finding the Fourth Proportional to 1,306.18, 1,959.22 and 332.31

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Solution

The fourth proportional to 1,306.18, 1,959.22 and 332.31 is: 498.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.18 : 1,959.22 = 332.31 : x
  2. Step 2: Convert to fraction form
    1,306.18/1,959.22 = 332.31/x
  3. Step 3: Cross multiply
    1,306.18x = 1,959.22 × 332.31
  4. Step 4: Simplify right side
    1,306.18x = 651,069.44
  5. Step 5: Solve for x
    x = 651,069.44/1,306.18
  6. Step 6: Final answer
    x = 498.45

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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.