Home / 255,007.38-351,899.09-140,278.75

Finding the Fourth Proportional to 255,007.38, 351,899.09 and 140,278.75

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Solution

The fourth proportional to 255,007.38, 351,899.09 and 140,278.75 is: 193,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,007.38 : 351,899.09 = 140,278.75 : x
  2. Step 2: Convert to fraction form
    255,007.38/351,899.09 = 140,278.75/x
  3. Step 3: Cross multiply
    255,007.38x = 351,899.09 × 140,278.75
  4. Step 4: Simplify right side
    255,007.38x = 49,363,964,471.34
  5. Step 5: Solve for x
    x = 49,363,964,471.34/255,007.38
  6. Step 6: Final answer
    x = 193,578.57

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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.