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Finding the Fourth Proportional to 372,693.87, 514,323.77 and 211,553.87

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Solution

The fourth proportional to 372,693.87, 514,323.77 and 211,553.87 is: 291,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,693.87 : 514,323.77 = 211,553.87 : x
  2. Step 2: Convert to fraction form
    372,693.87/514,323.77 = 211,553.87/x
  3. Step 3: Cross multiply
    372,693.87x = 514,323.77 × 211,553.87
  4. Step 4: Simplify right side
    372,693.87x = 108,807,180,347.10
  5. Step 5: Solve for x
    x = 108,807,180,347.10/372,693.87
  6. Step 6: Final answer
    x = 291,947.87

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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.