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Finding the Fourth Proportional to 630.92, 946.53 and 306.27

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Solution

The fourth proportional to 630.92, 946.53 and 306.27 is: 459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.92 : 946.53 = 306.27 : x
  2. Step 2: Convert to fraction form
    630.92/946.53 = 306.27/x
  3. Step 3: Cross multiply
    630.92x = 946.53 × 306.27
  4. Step 4: Simplify right side
    630.92x = 289,893.74
  5. Step 5: Solve for x
    x = 289,893.74/630.92
  6. Step 6: Final answer
    x = 459.48

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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.