Home / 213,947.82-320,908.77-56,172.78

Finding the Fourth Proportional to 213,947.82, 320,908.77 and 56,172.78

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Solution

The fourth proportional to 213,947.82, 320,908.77 and 56,172.78 is: 84,255.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,947.82 : 320,908.77 = 56,172.78 : x
  2. Step 2: Convert to fraction form
    213,947.82/320,908.77 = 56,172.78/x
  3. Step 3: Cross multiply
    213,947.82x = 320,908.77 × 56,172.78
  4. Step 4: Simplify right side
    213,947.82x = 18,026,337,737.28
  5. Step 5: Solve for x
    x = 18,026,337,737.28/213,947.82
  6. Step 6: Final answer
    x = 84,255.77

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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.