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Finding the Fourth Proportional to 950.25, 1,311.29 and 530.60

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Solution

The fourth proportional to 950.25, 1,311.29 and 530.60 is: 732.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.25 : 1,311.29 = 530.60 : x
  2. Step 2: Convert to fraction form
    950.25/1,311.29 = 530.60/x
  3. Step 3: Cross multiply
    950.25x = 1,311.29 × 530.60
  4. Step 4: Simplify right side
    950.25x = 695,763.25
  5. Step 5: Solve for x
    x = 695,763.25/950.25
  6. Step 6: Final answer
    x = 732.19

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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.