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Finding the Fourth Proportional to 546.75, 754.80 and 347.65

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Solution

The fourth proportional to 546.75, 754.80 and 347.65 is: 479.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.75 : 754.80 = 347.65 : x
  2. Step 2: Convert to fraction form
    546.75/754.80 = 347.65/x
  3. Step 3: Cross multiply
    546.75x = 754.80 × 347.65
  4. Step 4: Simplify right side
    546.75x = 262,406.22
  5. Step 5: Solve for x
    x = 262,406.22/546.75
  6. Step 6: Final answer
    x = 479.94

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Find fourth proportional to 273.38, 377.40 and 173.83
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Double scale
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1.5x scale

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.