Home / 285,107.04-393,320.16-164,216.64

Finding the Fourth Proportional to 285,107.04, 393,320.16 and 164,216.64

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Solution

The fourth proportional to 285,107.04, 393,320.16 and 164,216.64 is: 226,545.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,107.04 : 393,320.16 = 164,216.64 : x
  2. Step 2: Convert to fraction form
    285,107.04/393,320.16 = 164,216.64/x
  3. Step 3: Cross multiply
    285,107.04x = 393,320.16 × 164,216.64
  4. Step 4: Simplify right side
    285,107.04x = 64,589,715,119.46
  5. Step 5: Solve for x
    x = 64,589,715,119.46/285,107.04
  6. Step 6: Final answer
    x = 226,545.49

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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.