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Finding the Fourth Proportional to 228,490.68, 342,795.15 and 133,800.87

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Solution

The fourth proportional to 228,490.68, 342,795.15 and 133,800.87 is: 200,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,490.68 : 342,795.15 = 133,800.87 : x
  2. Step 2: Convert to fraction form
    228,490.68/342,795.15 = 133,800.87/x
  3. Step 3: Cross multiply
    228,490.68x = 342,795.15 × 133,800.87
  4. Step 4: Simplify right side
    228,490.68x = 45,866,289,301.78
  5. Step 5: Solve for x
    x = 45,866,289,301.78/228,490.68
  6. Step 6: Final answer
    x = 200,735.93

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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.