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Finding the Fourth Proportional to 531.25, 733.13 and 295.21

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Solution

The fourth proportional to 531.25, 733.13 and 295.21 is: 407.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.25 : 733.13 = 295.21 : x
  2. Step 2: Convert to fraction form
    531.25/733.13 = 295.21/x
  3. Step 3: Cross multiply
    531.25x = 733.13 × 295.21
  4. Step 4: Simplify right side
    531.25x = 216,427.31
  5. Step 5: Solve for x
    x = 216,427.31/531.25
  6. Step 6: Final answer
    x = 407.39

Related Problems

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Double scale
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Similar ratio
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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.