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Finding the Fourth Proportional to 546.12, 753.52 and 310.08

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Solution

The fourth proportional to 546.12, 753.52 and 310.08 is: 427.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.12 : 753.52 = 310.08 : x
  2. Step 2: Convert to fraction form
    546.12/753.52 = 310.08/x
  3. Step 3: Cross multiply
    546.12x = 753.52 × 310.08
  4. Step 4: Simplify right side
    546.12x = 233,651.48
  5. Step 5: Solve for x
    x = 233,651.48/546.12
  6. Step 6: Final answer
    x = 427.84

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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.