Home / 276,253.29-381,263.27-155,399.67

Finding the Fourth Proportional to 276,253.29, 381,263.27 and 155,399.67

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Solution

The fourth proportional to 276,253.29, 381,263.27 and 155,399.67 is: 214,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,253.29 : 381,263.27 = 155,399.67 : x
  2. Step 2: Convert to fraction form
    276,253.29/381,263.27 = 155,399.67/x
  3. Step 3: Cross multiply
    276,253.29x = 381,263.27 × 155,399.67
  4. Step 4: Simplify right side
    276,253.29x = 59,248,185,564.12
  5. Step 5: Solve for x
    x = 59,248,185,564.12/276,253.29
  6. Step 6: Final answer
    x = 214,470.52

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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.