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Finding the Fourth Proportional to 630.02, 945.06 and 305.66

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Solution

The fourth proportional to 630.02, 945.06 and 305.66 is: 458.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.02 : 945.06 = 305.66 : x
  2. Step 2: Convert to fraction form
    630.02/945.06 = 305.66/x
  3. Step 3: Cross multiply
    630.02x = 945.06 × 305.66
  4. Step 4: Simplify right side
    630.02x = 288,867.04
  5. Step 5: Solve for x
    x = 288,867.04/630.02
  6. Step 6: Final answer
    x = 458.50

Related Problems

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Half scale
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Double scale
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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.