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Finding the Fourth Proportional to 749.93, 1,125.04 and 263.32

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Solution

The fourth proportional to 749.93, 1,125.04 and 263.32 is: 395.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    749.93 : 1,125.04 = 263.32 : x
  2. Step 2: Convert to fraction form
    749.93/1,125.04 = 263.32/x
  3. Step 3: Cross multiply
    749.93x = 1,125.04 × 263.32
  4. Step 4: Simplify right side
    749.93x = 296,242.06
  5. Step 5: Solve for x
    x = 296,242.06/749.93
  6. Step 6: Final answer
    x = 395.03

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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.