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Finding the Fourth Proportional to 239,612.80, 330,653.88 and 144,100.96

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Solution

The fourth proportional to 239,612.80, 330,653.88 and 144,100.96 is: 198,852.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,612.80 : 330,653.88 = 144,100.96 : x
  2. Step 2: Convert to fraction form
    239,612.80/330,653.88 = 144,100.96/x
  3. Step 3: Cross multiply
    239,612.80x = 330,653.88 × 144,100.96
  4. Step 4: Simplify right side
    239,612.80x = 47,647,541,535.72
  5. Step 5: Solve for x
    x = 47,647,541,535.72/239,612.80
  6. Step 6: Final answer
    x = 198,852.24

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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.