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Finding the Fourth Proportional to 540.60, 746 and 304.56

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Solution

The fourth proportional to 540.60, 746 and 304.56 is: 420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.60 : 746 = 304.56 : x
  2. Step 2: Convert to fraction form
    540.60/746 = 304.56/x
  3. Step 3: Cross multiply
    540.60x = 746 × 304.56
  4. Step 4: Simplify right side
    540.60x = 227,201.76
  5. Step 5: Solve for x
    x = 227,201.76/540.60
  6. Step 6: Final answer
    x = 420.28

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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.