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Finding the Fourth Proportional to 372,378.01, 513,866.52 and 211,229.59

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Solution

The fourth proportional to 372,378.01, 513,866.52 and 211,229.59 is: 291,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,378.01 : 513,866.52 = 211,229.59 : x
  2. Step 2: Convert to fraction form
    372,378.01/513,866.52 = 211,229.59/x
  3. Step 3: Cross multiply
    372,378.01x = 513,866.52 × 211,229.59
  4. Step 4: Simplify right side
    372,378.01x = 108,543,814,334.33
  5. Step 5: Solve for x
    x = 108,543,814,334.33/372,378.01
  6. Step 6: Final answer
    x = 291,488.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.