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Finding the Fourth Proportional to 630.01, 945.12 and 264.90

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Solution

The fourth proportional to 630.01, 945.12 and 264.90 is: 397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.01 : 945.12 = 264.90 : x
  2. Step 2: Convert to fraction form
    630.01/945.12 = 264.90/x
  3. Step 3: Cross multiply
    630.01x = 945.12 × 264.90
  4. Step 4: Simplify right side
    630.01x = 250,365.34
  5. Step 5: Solve for x
    x = 250,365.34/630.01
  6. Step 6: Final answer
    x = 397.40

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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.