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Finding the Fourth Proportional to 260,048.80, 389,635.80 and 222,432.40

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Solution

The fourth proportional to 260,048.80, 389,635.80 and 222,432.40 is: 333,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,048.80 : 389,635.80 = 222,432.40 : x
  2. Step 2: Convert to fraction form
    260,048.80/389,635.80 = 222,432.40/x
  3. Step 3: Cross multiply
    260,048.80x = 389,635.80 × 222,432.40
  4. Step 4: Simplify right side
    260,048.80x = 86,667,626,119.92
  5. Step 5: Solve for x
    x = 86,667,626,119.92/260,048.80
  6. Step 6: Final answer
    x = 333,274.47

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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.