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Finding the Fourth Proportional to 319,201.02, 440,528.49 and 238,488.44

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Solution

The fourth proportional to 319,201.02, 440,528.49 and 238,488.44 is: 329,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,201.02 : 440,528.49 = 238,488.44 : x
  2. Step 2: Convert to fraction form
    319,201.02/440,528.49 = 238,488.44/x
  3. Step 3: Cross multiply
    319,201.02x = 440,528.49 × 238,488.44
  4. Step 4: Simplify right side
    319,201.02x = 105,060,950,153.01
  5. Step 5: Solve for x
    x = 105,060,950,153.01/319,201.02
  6. Step 6: Final answer
    x = 329,137.26

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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.