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Finding the Fourth Proportional to 408,666.37, 563,962.38 and 227,385.94

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Solution

The fourth proportional to 408,666.37, 563,962.38 and 227,385.94 is: 313,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,666.37 : 563,962.38 = 227,385.94 : x
  2. Step 2: Convert to fraction form
    408,666.37/563,962.38 = 227,385.94/x
  3. Step 3: Cross multiply
    408,666.37x = 563,962.38 × 227,385.94
  4. Step 4: Simplify right side
    408,666.37x = 128,237,115,900.94
  5. Step 5: Solve for x
    x = 128,237,115,900.94/408,666.37
  6. Step 6: Final answer
    x = 313,794.15

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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.