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Finding the Fourth Proportional to 950.93, 1,312.26 and 531.25

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Solution

The fourth proportional to 950.93, 1,312.26 and 531.25 is: 733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.93 : 1,312.26 = 531.25 : x
  2. Step 2: Convert to fraction form
    950.93/1,312.26 = 531.25/x
  3. Step 3: Cross multiply
    950.93x = 1,312.26 × 531.25
  4. Step 4: Simplify right side
    950.93x = 697,138.13
  5. Step 5: Solve for x
    x = 697,138.13/950.93
  6. Step 6: Final answer
    x = 733.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.