Home / 276,615.17-381,725.29-155,768.39

Finding the Fourth Proportional to 276,615.17, 381,725.29 and 155,768.39

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Solution

The fourth proportional to 276,615.17, 381,725.29 and 155,768.39 is: 214,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,615.17 : 381,725.29 = 155,768.39 : x
  2. Step 2: Convert to fraction form
    276,615.17/381,725.29 = 155,768.39/x
  3. Step 3: Cross multiply
    276,615.17x = 381,725.29 × 155,768.39
  4. Step 4: Simplify right side
    276,615.17x = 59,460,733,845.58
  5. Step 5: Solve for x
    x = 59,460,733,845.58/276,615.17
  6. Step 6: Final answer
    x = 214,958.33

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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.