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Finding the Fourth Proportional to 525.08, 724.56 and 303.88

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Solution

The fourth proportional to 525.08, 724.56 and 303.88 is: 419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.08 : 724.56 = 303.88 : x
  2. Step 2: Convert to fraction form
    525.08/724.56 = 303.88/x
  3. Step 3: Cross multiply
    525.08x = 724.56 × 303.88
  4. Step 4: Simplify right side
    525.08x = 220,179.29
  5. Step 5: Solve for x
    x = 220,179.29/525.08
  6. Step 6: Final answer
    x = 419.33

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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.