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Finding the Fourth Proportional to 546.34, 753.93 and 310.28

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Solution

The fourth proportional to 546.34, 753.93 and 310.28 is: 428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.34 : 753.93 = 310.28 : x
  2. Step 2: Convert to fraction form
    546.34/753.93 = 310.28/x
  3. Step 3: Cross multiply
    546.34x = 753.93 × 310.28
  4. Step 4: Simplify right side
    546.34x = 233,924.47
  5. Step 5: Solve for x
    x = 233,924.47/546.34
  6. Step 6: Final answer
    x = 428.17

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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.