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Finding the Fourth Proportional to 546.76, 754.47 and 325.68

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Solution

The fourth proportional to 546.76, 754.47 and 325.68 is: 449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.76 : 754.47 = 325.68 : x
  2. Step 2: Convert to fraction form
    546.76/754.47 = 325.68/x
  3. Step 3: Cross multiply
    546.76x = 754.47 × 325.68
  4. Step 4: Simplify right side
    546.76x = 245,714.16
  5. Step 5: Solve for x
    x = 245,714.16/546.76
  6. Step 6: Final answer
    x = 449.40

Related Problems

Find fourth proportional to 273.38, 377.23 and 162.84
Half scale
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Double scale
Find fourth proportional to 547.76, 755.84 and 326.68
Similar ratio
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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.