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Finding the Fourth Proportional to 531.71, 733.33 and 407.67

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Solution

The fourth proportional to 531.71, 733.33 and 407.67 is: 562.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.71 : 733.33 = 407.67 : x
  2. Step 2: Convert to fraction form
    531.71/733.33 = 407.67/x
  3. Step 3: Cross multiply
    531.71x = 733.33 × 407.67
  4. Step 4: Simplify right side
    531.71x = 298,956.35
  5. Step 5: Solve for x
    x = 298,956.35/531.71
  6. Step 6: Final answer
    x = 562.25

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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.