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Finding the Fourth Proportional to 546.26, 753.90 and 313.38

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Solution

The fourth proportional to 546.26, 753.90 and 313.38 is: 432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.26 : 753.90 = 313.38 : x
  2. Step 2: Convert to fraction form
    546.26/753.90 = 313.38/x
  3. Step 3: Cross multiply
    546.26x = 753.90 × 313.38
  4. Step 4: Simplify right side
    546.26x = 236,253.41
  5. Step 5: Solve for x
    x = 236,253.41/546.26
  6. Step 6: Final answer
    x = 432.50

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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.