Home / 750.26-1,125.12-288.17

Finding the Fourth Proportional to 750.26, 1,125.12 and 288.17

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Solution

The fourth proportional to 750.26, 1,125.12 and 288.17 is: 432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.26 : 1,125.12 = 288.17 : x
  2. Step 2: Convert to fraction form
    750.26/1,125.12 = 288.17/x
  3. Step 3: Cross multiply
    750.26x = 1,125.12 × 288.17
  4. Step 4: Simplify right side
    750.26x = 324,225.83
  5. Step 5: Solve for x
    x = 324,225.83/750.26
  6. Step 6: Final answer
    x = 432.15

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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.