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Finding the Fourth Proportional to 350,774.57, 484,057.11 and 221,782.48

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Solution

The fourth proportional to 350,774.57, 484,057.11 and 221,782.48 is: 306,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,774.57 : 484,057.11 = 221,782.48 : x
  2. Step 2: Convert to fraction form
    350,774.57/484,057.11 = 221,782.48/x
  3. Step 3: Cross multiply
    350,774.57x = 484,057.11 × 221,782.48
  4. Step 4: Simplify right side
    350,774.57x = 107,355,385,107.29
  5. Step 5: Solve for x
    x = 107,355,385,107.29/350,774.57
  6. Step 6: Final answer
    x = 306,052.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.