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Finding the Fourth Proportional to 319,671.76, 479,126.30 and 148,662.62

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Solution

The fourth proportional to 319,671.76, 479,126.30 and 148,662.62 is: 222,816.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,671.76 : 479,126.30 = 148,662.62 : x
  2. Step 2: Convert to fraction form
    319,671.76/479,126.30 = 148,662.62/x
  3. Step 3: Cross multiply
    319,671.76x = 479,126.30 × 148,662.62
  4. Step 4: Simplify right side
    319,671.76x = 71,228,171,068.91
  5. Step 5: Solve for x
    x = 71,228,171,068.91/319,671.76
  6. Step 6: Final answer
    x = 222,816.59

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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.