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Finding the Fourth Proportional to 751.03, 1,126.02 and 288.25

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Solution

The fourth proportional to 751.03, 1,126.02 and 288.25 is: 432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    751.03 : 1,126.02 = 288.25 : x
  2. Step 2: Convert to fraction form
    751.03/1,126.02 = 288.25/x
  3. Step 3: Cross multiply
    751.03x = 1,126.02 × 288.25
  4. Step 4: Simplify right side
    751.03x = 324,575.27
  5. Step 5: Solve for x
    x = 324,575.27/751.03
  6. Step 6: Final answer
    x = 432.17

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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.