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Finding the Fourth Proportional to 604.30, 906.45 and 330.93

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Solution

The fourth proportional to 604.30, 906.45 and 330.93 is: 496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.30 : 906.45 = 330.93 : x
  2. Step 2: Convert to fraction form
    604.30/906.45 = 330.93/x
  3. Step 3: Cross multiply
    604.30x = 906.45 × 330.93
  4. Step 4: Simplify right side
    604.30x = 299,971.50
  5. Step 5: Solve for x
    x = 299,971.50/604.30
  6. Step 6: Final answer
    x = 496.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.