Home / 285,460.80-393,977.86-164,578.46

Finding the Fourth Proportional to 285,460.80, 393,977.86 and 164,578.46

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Solution

The fourth proportional to 285,460.80, 393,977.86 and 164,578.46 is: 227,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,460.80 : 393,977.86 = 164,578.46 : x
  2. Step 2: Convert to fraction form
    285,460.80/393,977.86 = 164,578.46/x
  3. Step 3: Cross multiply
    285,460.80x = 393,977.86 × 164,578.46
  4. Step 4: Simplify right side
    285,460.80x = 64,840,269,472.90
  5. Step 5: Solve for x
    x = 64,840,269,472.90/285,460.80
  6. Step 6: Final answer
    x = 227,142.46

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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.