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Finding the Fourth Proportional to 539,401.20, 809,425.80 and 223,825.20

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Solution

The fourth proportional to 539,401.20, 809,425.80 and 223,825.20 is: 335,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,401.20 : 809,425.80 = 223,825.20 : x
  2. Step 2: Convert to fraction form
    539,401.20/809,425.80 = 223,825.20/x
  3. Step 3: Cross multiply
    539,401.20x = 809,425.80 × 223,825.20
  4. Step 4: Simplify right side
    539,401.20x = 181,169,891,570.16
  5. Step 5: Solve for x
    x = 181,169,891,570.16/539,401.20
  6. Step 6: Final answer
    x = 335,872.24

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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.