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Finding the Fourth Proportional to 1,301.99, 1,952.97 and 314.80

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Solution

The fourth proportional to 1,301.99, 1,952.97 and 314.80 is: 472.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.99 : 1,952.97 = 314.80 : x
  2. Step 2: Convert to fraction form
    1,301.99/1,952.97 = 314.80/x
  3. Step 3: Cross multiply
    1,301.99x = 1,952.97 × 314.80
  4. Step 4: Simplify right side
    1,301.99x = 614,785.19
  5. Step 5: Solve for x
    x = 614,785.19/1,301.99
  6. Step 6: Final answer
    x = 472.19

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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.