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Finding the Fourth Proportional to 319,614.78, 479,297.52 and 119,826.30

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Solution

The fourth proportional to 319,614.78, 479,297.52 and 119,826.30 is: 179,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,614.78 : 479,297.52 = 119,826.30 : x
  2. Step 2: Convert to fraction form
    319,614.78/479,297.52 = 119,826.30/x
  3. Step 3: Cross multiply
    319,614.78x = 479,297.52 × 119,826.30
  4. Step 4: Simplify right side
    319,614.78x = 57,432,448,420.78
  5. Step 5: Solve for x
    x = 57,432,448,420.78/319,614.78
  6. Step 6: Final answer
    x = 179,692.72

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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.