Home / 750.30-1,125.55-263.24

Finding the Fourth Proportional to 750.30, 1,125.55 and 263.24

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Solution

The fourth proportional to 750.30, 1,125.55 and 263.24 is: 394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.30 : 1,125.55 = 263.24 : x
  2. Step 2: Convert to fraction form
    750.30/1,125.55 = 263.24/x
  3. Step 3: Cross multiply
    750.30x = 1,125.55 × 263.24
  4. Step 4: Simplify right side
    750.30x = 296,289.78
  5. Step 5: Solve for x
    x = 296,289.78/750.30
  6. Step 6: Final answer
    x = 394.90

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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.