Home / 276,182.49-381,100.86-155,321.18

Finding the Fourth Proportional to 276,182.49, 381,100.86 and 155,321.18

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Solution

The fourth proportional to 276,182.49, 381,100.86 and 155,321.18 is: 214,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,182.49 : 381,100.86 = 155,321.18 : x
  2. Step 2: Convert to fraction form
    276,182.49/381,100.86 = 155,321.18/x
  3. Step 3: Cross multiply
    276,182.49x = 381,100.86 × 155,321.18
  4. Step 4: Simplify right side
    276,182.49x = 59,193,033,368.71
  5. Step 5: Solve for x
    x = 59,193,033,368.71/276,182.49
  6. Step 6: Final answer
    x = 214,325.80

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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.