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Finding the Fourth Proportional to 393,025.92, 589,045.60 and 168,121.92

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Solution

The fourth proportional to 393,025.92, 589,045.60 and 168,121.92 is: 251,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,025.92 : 589,045.60 = 168,121.92 : x
  2. Step 2: Convert to fraction form
    393,025.92/589,045.60 = 168,121.92/x
  3. Step 3: Cross multiply
    393,025.92x = 589,045.60 × 168,121.92
  4. Step 4: Simplify right side
    393,025.92x = 99,031,477,239.55
  5. Step 5: Solve for x
    x = 99,031,477,239.55/393,025.92
  6. Step 6: Final answer
    x = 251,971.87

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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.