Home / 268,831.72-403,014.30-135,600.76

Finding the Fourth Proportional to 268,831.72, 403,014.30 and 135,600.76

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Solution

The fourth proportional to 268,831.72, 403,014.30 and 135,600.76 is: 203,283.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,831.72 : 403,014.30 = 135,600.76 : x
  2. Step 2: Convert to fraction form
    268,831.72/403,014.30 = 135,600.76/x
  3. Step 3: Cross multiply
    268,831.72x = 403,014.30 × 135,600.76
  4. Step 4: Simplify right side
    268,831.72x = 54,649,045,370.87
  5. Step 5: Solve for x
    x = 54,649,045,370.87/268,831.72
  6. Step 6: Final answer
    x = 203,283.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.