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Finding the Fourth Proportional to 386,234.40, 579,351.60 and 164,589.60

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Solution

The fourth proportional to 386,234.40, 579,351.60 and 164,589.60 is: 246,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,234.40 : 579,351.60 = 164,589.60 : x
  2. Step 2: Convert to fraction form
    386,234.40/579,351.60 = 164,589.60/x
  3. Step 3: Cross multiply
    386,234.40x = 579,351.60 × 164,589.60
  4. Step 4: Simplify right side
    386,234.40x = 95,355,248,103.36
  5. Step 5: Solve for x
    x = 95,355,248,103.36/386,234.40
  6. Step 6: Final answer
    x = 246,884.40

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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.