Home / 200,387.49-276,535.16-108,507.78

Finding the Fourth Proportional to 200,387.49, 276,535.16 and 108,507.78

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Solution

The fourth proportional to 200,387.49, 276,535.16 and 108,507.78 is: 149,740.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,387.49 : 276,535.16 = 108,507.78 : x
  2. Step 2: Convert to fraction form
    200,387.49/276,535.16 = 108,507.78/x
  3. Step 3: Cross multiply
    200,387.49x = 276,535.16 × 108,507.78
  4. Step 4: Simplify right side
    200,387.49x = 30,006,216,574.81
  5. Step 5: Solve for x
    x = 30,006,216,574.81/200,387.49
  6. Step 6: Final answer
    x = 149,740.97

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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.