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Finding the Fourth Proportional to 408,298.74, 563,465.28 and 227,018.31

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Solution

The fourth proportional to 408,298.74, 563,465.28 and 227,018.31 is: 313,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,298.74 : 563,465.28 = 227,018.31 : x
  2. Step 2: Convert to fraction form
    408,298.74/563,465.28 = 227,018.31/x
  3. Step 3: Cross multiply
    408,298.74x = 563,465.28 × 227,018.31
  4. Step 4: Simplify right side
    408,298.74x = 127,916,935,609.28
  5. Step 5: Solve for x
    x = 127,916,935,609.28/408,298.74
  6. Step 6: Final answer
    x = 313,292.51

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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.