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Finding the Fourth Proportional to 243,050.88, 335,439.20 and 142,448.80

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Solution

The fourth proportional to 243,050.88, 335,439.20 and 142,448.80 is: 196,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,050.88 : 335,439.20 = 142,448.80 : x
  2. Step 2: Convert to fraction form
    243,050.88/335,439.20 = 142,448.80/x
  3. Step 3: Cross multiply
    243,050.88x = 335,439.20 × 142,448.80
  4. Step 4: Simplify right side
    243,050.88x = 47,782,911,512.96
  5. Step 5: Solve for x
    x = 47,782,911,512.96/243,050.88
  6. Step 6: Final answer
    x = 196,596.33

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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.