Home / 206,345.75-309,479.27-64,192.79

Finding the Fourth Proportional to 206,345.75, 309,479.27 and 64,192.79

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Solution

The fourth proportional to 206,345.75, 309,479.27 and 64,192.79 is: 96,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,345.75 : 309,479.27 = 64,192.79 : x
  2. Step 2: Convert to fraction form
    206,345.75/309,479.27 = 64,192.79/x
  3. Step 3: Cross multiply
    206,345.75x = 309,479.27 × 64,192.79
  4. Step 4: Simplify right side
    206,345.75x = 19,866,335,920.10
  5. Step 5: Solve for x
    x = 19,866,335,920.10/206,345.75
  6. Step 6: Final answer
    x = 96,276.94

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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.