Home / 285,137.16-393,576.96-164,359.21

Finding the Fourth Proportional to 285,137.16, 393,576.96 and 164,359.21

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Solution

The fourth proportional to 285,137.16, 393,576.96 and 164,359.21 is: 226,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,137.16 : 393,576.96 = 164,359.21 : x
  2. Step 2: Convert to fraction form
    285,137.16/393,576.96 = 164,359.21/x
  3. Step 3: Cross multiply
    285,137.16x = 393,576.96 × 164,359.21
  4. Step 4: Simplify right side
    285,137.16x = 64,687,998,219.80
  5. Step 5: Solve for x
    x = 64,687,998,219.80/285,137.16
  6. Step 6: Final answer
    x = 226,866.25

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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.