Home / 217,715.24-300,394.44-127,019.43

Finding the Fourth Proportional to 217,715.24, 300,394.44 and 127,019.43

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Solution

The fourth proportional to 217,715.24, 300,394.44 and 127,019.43 is: 175,256.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,715.24 : 300,394.44 = 127,019.43 : x
  2. Step 2: Convert to fraction form
    217,715.24/300,394.44 = 127,019.43/x
  3. Step 3: Cross multiply
    217,715.24x = 300,394.44 × 127,019.43
  4. Step 4: Simplify right side
    217,715.24x = 38,155,930,543.97
  5. Step 5: Solve for x
    x = 38,155,930,543.97/217,715.24
  6. Step 6: Final answer
    x = 175,256.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.