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Finding the Fourth Proportional to 546.60, 754.31 and 322.50

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Solution

The fourth proportional to 546.60, 754.31 and 322.50 is: 445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.60 : 754.31 = 322.50 : x
  2. Step 2: Convert to fraction form
    546.60/754.31 = 322.50/x
  3. Step 3: Cross multiply
    546.60x = 754.31 × 322.50
  4. Step 4: Simplify right side
    546.60x = 243,264.98
  5. Step 5: Solve for x
    x = 243,264.98/546.60
  6. Step 6: Final answer
    x = 445.05

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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.