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Finding the Fourth Proportional to 379,133.66, 568,698.86 and 154,443.98

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Solution

The fourth proportional to 379,133.66, 568,698.86 and 154,443.98 is: 231,665.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,133.66 : 568,698.86 = 154,443.98 : x
  2. Step 2: Convert to fraction form
    379,133.66/568,698.86 = 154,443.98/x
  3. Step 3: Cross multiply
    379,133.66x = 568,698.86 × 154,443.98
  4. Step 4: Simplify right side
    379,133.66x = 87,832,115,359.86
  5. Step 5: Solve for x
    x = 87,832,115,359.86/379,133.66
  6. Step 6: Final answer
    x = 231,665.31

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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.