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Finding the Fourth Proportional to 631.33, 946.03 and 425.13

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Solution

The fourth proportional to 631.33, 946.03 and 425.13 is: 637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.33 : 946.03 = 425.13 : x
  2. Step 2: Convert to fraction form
    631.33/946.03 = 425.13/x
  3. Step 3: Cross multiply
    631.33x = 946.03 × 425.13
  4. Step 4: Simplify right side
    631.33x = 402,183.61
  5. Step 5: Solve for x
    x = 402,183.61/631.33
  6. Step 6: Final answer
    x = 637.05

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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.