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Finding the Fourth Proportional to 630.93, 947.28 and 323.00

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Solution

The fourth proportional to 630.93, 947.28 and 323.00 is: 484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.93 : 947.28 = 323.00 : x
  2. Step 2: Convert to fraction form
    630.93/947.28 = 323.00/x
  3. Step 3: Cross multiply
    630.93x = 947.28 × 323.00
  4. Step 4: Simplify right side
    630.93x = 305,971.47
  5. Step 5: Solve for x
    x = 305,971.47/630.93
  6. Step 6: Final answer
    x = 484.95

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Double scale
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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.