Home / 276,438.15-381,496.93-155,587.28

Finding the Fourth Proportional to 276,438.15, 381,496.93 and 155,587.28

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Solution

The fourth proportional to 276,438.15, 381,496.93 and 155,587.28 is: 214,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,438.15 : 381,496.93 = 155,587.28 : x
  2. Step 2: Convert to fraction form
    276,438.15/381,496.93 = 155,587.28/x
  3. Step 3: Cross multiply
    276,438.15x = 381,496.93 × 155,587.28
  4. Step 4: Simplify right side
    276,438.15x = 59,356,067,370.60
  5. Step 5: Solve for x
    x = 59,356,067,370.60/276,438.15
  6. Step 6: Final answer
    x = 214,717.35

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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.