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Finding the Fourth Proportional to 521,502.01, 782,582.09 and 221,982.12

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Solution

The fourth proportional to 521,502.01, 782,582.09 and 221,982.12 is: 333,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,502.01 : 782,582.09 = 221,982.12 : x
  2. Step 2: Convert to fraction form
    521,502.01/782,582.09 = 221,982.12/x
  3. Step 3: Cross multiply
    521,502.01x = 782,582.09 × 221,982.12
  4. Step 4: Simplify right side
    521,502.01x = 173,719,231,550.97
  5. Step 5: Solve for x
    x = 173,719,231,550.97/521,502.01
  6. Step 6: Final answer
    x = 333,113.25

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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.