Home / 312,434.92-431,156.82-176,469.13

Finding the Fourth Proportional to 312,434.92, 431,156.82 and 176,469.13

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Solution

The fourth proportional to 312,434.92, 431,156.82 and 176,469.13 is: 243,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,434.92 : 431,156.82 = 176,469.13 : x
  2. Step 2: Convert to fraction form
    312,434.92/431,156.82 = 176,469.13/x
  3. Step 3: Cross multiply
    312,434.92x = 431,156.82 × 176,469.13
  4. Step 4: Simplify right side
    312,434.92x = 76,085,868,918.97
  5. Step 5: Solve for x
    x = 76,085,868,918.97/312,434.92
  6. Step 6: Final answer
    x = 243,525.50

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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.