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Finding the Fourth Proportional to 540.84, 746.33 and 304.79

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Solution

The fourth proportional to 540.84, 746.33 and 304.79 is: 420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.84 : 746.33 = 304.79 : x
  2. Step 2: Convert to fraction form
    540.84/746.33 = 304.79/x
  3. Step 3: Cross multiply
    540.84x = 746.33 × 304.79
  4. Step 4: Simplify right side
    540.84x = 227,468.67
  5. Step 5: Solve for x
    x = 227,468.67/540.84
  6. Step 6: Final answer
    x = 420.59

Related Problems

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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.