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Finding the Fourth Proportional to 227,108.99, 340,664 and 213,236.58

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Solution

The fourth proportional to 227,108.99, 340,664 and 213,236.58 is: 319,855.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,108.99 : 340,664 = 213,236.58 : x
  2. Step 2: Convert to fraction form
    227,108.99/340,664 = 213,236.58/x
  3. Step 3: Cross multiply
    227,108.99x = 340,664 × 213,236.58
  4. Step 4: Simplify right side
    227,108.99x = 72,642,026,289.12
  5. Step 5: Solve for x
    x = 72,642,026,289.12/227,108.99
  6. Step 6: Final answer
    x = 319,855.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.