Home / 285,448.83-393,943.38-158,136.27

Finding the Fourth Proportional to 285,448.83, 393,943.38 and 158,136.27

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Solution

The fourth proportional to 285,448.83, 393,943.38 and 158,136.27 is: 218,241.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,448.83 : 393,943.38 = 158,136.27 : x
  2. Step 2: Convert to fraction form
    285,448.83/393,943.38 = 158,136.27/x
  3. Step 3: Cross multiply
    285,448.83x = 393,943.38 × 158,136.27
  4. Step 4: Simplify right side
    285,448.83x = 62,296,736,704.39
  5. Step 5: Solve for x
    x = 62,296,736,704.39/285,448.83
  6. Step 6: Final answer
    x = 218,241.35

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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.