Home / 285,581.36-394,097.56-156,518.84

Finding the Fourth Proportional to 285,581.36, 394,097.56 and 156,518.84

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Solution

The fourth proportional to 285,581.36, 394,097.56 and 156,518.84 is: 215,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,581.36 : 394,097.56 = 156,518.84 : x
  2. Step 2: Convert to fraction form
    285,581.36/394,097.56 = 156,518.84/x
  3. Step 3: Cross multiply
    285,581.36x = 394,097.56 × 156,518.84
  4. Step 4: Simplify right side
    285,581.36x = 61,683,692,938.03
  5. Step 5: Solve for x
    x = 61,683,692,938.03/285,581.36
  6. Step 6: Final answer
    x = 215,993.41

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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.