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Finding the Fourth Proportional to 228,856.35, 315,831.76 and 126,875.33

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Solution

The fourth proportional to 228,856.35, 315,831.76 and 126,875.33 is: 175,093.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,856.35 : 315,831.76 = 126,875.33 : x
  2. Step 2: Convert to fraction form
    228,856.35/315,831.76 = 126,875.33/x
  3. Step 3: Cross multiply
    228,856.35x = 315,831.76 × 126,875.33
  4. Step 4: Simplify right side
    228,856.35x = 40,071,257,195.32
  5. Step 5: Solve for x
    x = 40,071,257,195.32/228,856.35
  6. Step 6: Final answer
    x = 175,093.49

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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.