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Finding the Fourth Proportional to 206,379.08, 309,599.39 and 73,248.20

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Solution

The fourth proportional to 206,379.08, 309,599.39 and 73,248.20 is: 109,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,379.08 : 309,599.39 = 73,248.20 : x
  2. Step 2: Convert to fraction form
    206,379.08/309,599.39 = 73,248.20/x
  3. Step 3: Cross multiply
    206,379.08x = 309,599.39 × 73,248.20
  4. Step 4: Simplify right side
    206,379.08x = 22,677,596,124.36
  5. Step 5: Solve for x
    x = 22,677,596,124.36/206,379.08
  6. Step 6: Final answer
    x = 109,883.21

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1.5x scale

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.