Home / 285,392.20-393,819.56-158,065.06

Finding the Fourth Proportional to 285,392.20, 393,819.56 and 158,065.06

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Solution

The fourth proportional to 285,392.20, 393,819.56 and 158,065.06 is: 218,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,392.20 : 393,819.56 = 158,065.06 : x
  2. Step 2: Convert to fraction form
    285,392.20/393,819.56 = 158,065.06/x
  3. Step 3: Cross multiply
    285,392.20x = 393,819.56 × 158,065.06
  4. Step 4: Simplify right side
    285,392.20x = 62,249,112,380.57
  5. Step 5: Solve for x
    x = 62,249,112,380.57/285,392.20
  6. Step 6: Final answer
    x = 218,117.78

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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.