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Finding the Fourth Proportional to 372,900.70, 558,976.50 and 119,995.31

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Solution

The fourth proportional to 372,900.70, 558,976.50 and 119,995.31 is: 179,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,900.70 : 558,976.50 = 119,995.31 : x
  2. Step 2: Convert to fraction form
    372,900.70/558,976.50 = 119,995.31/x
  3. Step 3: Cross multiply
    372,900.70x = 558,976.50 × 119,995.31
  4. Step 4: Simplify right side
    372,900.70x = 67,074,558,400.22
  5. Step 5: Solve for x
    x = 67,074,558,400.22/372,900.70
  6. Step 6: Final answer
    x = 179,872.44

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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.