Home / 285,460.03-393,936.34-161,281.56

Finding the Fourth Proportional to 285,460.03, 393,936.34 and 161,281.56

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Solution

The fourth proportional to 285,460.03, 393,936.34 and 161,281.56 is: 222,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,460.03 : 393,936.34 = 161,281.56 : x
  2. Step 2: Convert to fraction form
    285,460.03/393,936.34 = 161,281.56/x
  3. Step 3: Cross multiply
    285,460.03x = 393,936.34 × 161,281.56
  4. Step 4: Simplify right side
    285,460.03x = 63,534,664,679.80
  5. Step 5: Solve for x
    x = 63,534,664,679.80/285,460.03
  6. Step 6: Final answer
    x = 222,569.39

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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.