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Finding the Fourth Proportional to 531.21, 733.12 and 295.22

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Solution

The fourth proportional to 531.21, 733.12 and 295.22 is: 407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.21 : 733.12 = 295.22 : x
  2. Step 2: Convert to fraction form
    531.21/733.12 = 295.22/x
  3. Step 3: Cross multiply
    531.21x = 733.12 × 295.22
  4. Step 4: Simplify right side
    531.21x = 216,427.28
  5. Step 5: Solve for x
    x = 216,427.28/531.21
  6. Step 6: Final answer
    x = 407.43

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Double scale
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1.5x scale

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.