Home / 276,264.08-381,208.56-155,401.28

Finding the Fourth Proportional to 276,264.08, 381,208.56 and 155,401.28

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Solution

The fourth proportional to 276,264.08, 381,208.56 and 155,401.28 is: 214,433.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,264.08 : 381,208.56 = 155,401.28 : x
  2. Step 2: Convert to fraction form
    276,264.08/381,208.56 = 155,401.28/x
  3. Step 3: Cross multiply
    276,264.08x = 381,208.56 × 155,401.28
  4. Step 4: Simplify right side
    276,264.08x = 59,240,298,170.96
  5. Step 5: Solve for x
    x = 59,240,298,170.96/276,264.08
  6. Step 6: Final answer
    x = 214,433.59

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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.