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Finding the Fourth Proportional to 521,851.20, 782,849.70 and 222,329.40

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Solution

The fourth proportional to 521,851.20, 782,849.70 and 222,329.40 is: 333,525.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,851.20 : 782,849.70 = 222,329.40 : x
  2. Step 2: Convert to fraction form
    521,851.20/782,849.70 = 222,329.40/x
  3. Step 3: Cross multiply
    521,851.20x = 782,849.70 × 222,329.40
  4. Step 4: Simplify right side
    521,851.20x = 174,050,504,091.18
  5. Step 5: Solve for x
    x = 174,050,504,091.18/521,851.20
  6. Step 6: Final answer
    x = 333,525.16

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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.