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Finding the Fourth Proportional to 546.84, 754.70 and 345.25

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Solution

The fourth proportional to 546.84, 754.70 and 345.25 is: 476.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.84 : 754.70 = 345.25 : x
  2. Step 2: Convert to fraction form
    546.84/754.70 = 345.25/x
  3. Step 3: Cross multiply
    546.84x = 754.70 × 345.25
  4. Step 4: Simplify right side
    546.84x = 260,557.47
  5. Step 5: Solve for x
    x = 260,557.47/546.84
  6. Step 6: Final answer
    x = 476.48

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Double scale
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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.