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Finding the Fourth Proportional to 531.70, 795.59 and 322.72

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Solution

The fourth proportional to 531.70, 795.59 and 322.72 is: 482.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.70 : 795.59 = 322.72 : x
  2. Step 2: Convert to fraction form
    531.70/795.59 = 322.72/x
  3. Step 3: Cross multiply
    531.70x = 795.59 × 322.72
  4. Step 4: Simplify right side
    531.70x = 256,753.40
  5. Step 5: Solve for x
    x = 256,753.40/531.70
  6. Step 6: Final answer
    x = 482.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.