Home / 313,011.32-431,961.51-192,092.09

Finding the Fourth Proportional to 313,011.32, 431,961.51 and 192,092.09

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Solution

The fourth proportional to 313,011.32, 431,961.51 and 192,092.09 is: 265,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,011.32 : 431,961.51 = 192,092.09 : x
  2. Step 2: Convert to fraction form
    313,011.32/431,961.51 = 192,092.09/x
  3. Step 3: Cross multiply
    313,011.32x = 431,961.51 × 192,092.09
  4. Step 4: Simplify right side
    313,011.32x = 82,976,386,135.19
  5. Step 5: Solve for x
    x = 82,976,386,135.19/313,011.32
  6. Step 6: Final answer
    x = 265,090.69

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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.