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Finding the Fourth Proportional to 379,110.90, 568,655.34 and 154,415.77

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Solution

The fourth proportional to 379,110.90, 568,655.34 and 154,415.77 is: 231,619.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,110.90 : 568,655.34 = 154,415.77 : x
  2. Step 2: Convert to fraction form
    379,110.90/568,655.34 = 154,415.77/x
  3. Step 3: Cross multiply
    379,110.90x = 568,655.34 × 154,415.77
  4. Step 4: Simplify right side
    379,110.90x = 87,809,352,190.71
  5. Step 5: Solve for x
    x = 87,809,352,190.71/379,110.90
  6. Step 6: Final answer
    x = 231,619.17

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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.