Home / 400,730.64-553,008.27-221,882.64

Finding the Fourth Proportional to 400,730.64, 553,008.27 and 221,882.64

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Solution

The fourth proportional to 400,730.64, 553,008.27 and 221,882.64 is: 306,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,730.64 : 553,008.27 = 221,882.64 : x
  2. Step 2: Convert to fraction form
    400,730.64/553,008.27 = 221,882.64/x
  3. Step 3: Cross multiply
    400,730.64x = 553,008.27 × 221,882.64
  4. Step 4: Simplify right side
    400,730.64x = 122,702,934,889.43
  5. Step 5: Solve for x
    x = 122,702,934,889.43/400,730.64
  6. Step 6: Final answer
    x = 306,198.04

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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.