Home / 276,743.03-381,854.66-155,858.43

Finding the Fourth Proportional to 276,743.03, 381,854.66 and 155,858.43

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Solution

The fourth proportional to 276,743.03, 381,854.66 and 155,858.43 is: 215,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,743.03 : 381,854.66 = 155,858.43 : x
  2. Step 2: Convert to fraction form
    276,743.03/381,854.66 = 155,858.43/x
  3. Step 3: Cross multiply
    276,743.03x = 381,854.66 × 155,858.43
  4. Step 4: Simplify right side
    276,743.03x = 59,515,266,300.51
  5. Step 5: Solve for x
    x = 59,515,266,300.51/276,743.03
  6. Step 6: Final answer
    x = 215,056.06

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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.