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Finding the Fourth Proportional to 228,861.95, 315,828.93 and 126,884.81

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Solution

The fourth proportional to 228,861.95, 315,828.93 and 126,884.81 is: 175,100.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,861.95 : 315,828.93 = 126,884.81 : x
  2. Step 2: Convert to fraction form
    228,861.95/315,828.93 = 126,884.81/x
  3. Step 3: Cross multiply
    228,861.95x = 315,828.93 × 126,884.81
  4. Step 4: Simplify right side
    228,861.95x = 40,073,892,196.41
  5. Step 5: Solve for x
    x = 40,073,892,196.41/228,861.95
  6. Step 6: Final answer
    x = 175,100.72

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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.