Home / 274,557.36-378,814.14-188,542.20

Finding the Fourth Proportional to 274,557.36, 378,814.14 and 188,542.20

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Solution

The fourth proportional to 274,557.36, 378,814.14 and 188,542.20 is: 260,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,557.36 : 378,814.14 = 188,542.20 : x
  2. Step 2: Convert to fraction form
    274,557.36/378,814.14 = 188,542.20/x
  3. Step 3: Cross multiply
    274,557.36x = 378,814.14 × 188,542.20
  4. Step 4: Simplify right side
    274,557.36x = 71,422,451,346.71
  5. Step 5: Solve for x
    x = 71,422,451,346.71/274,557.36
  6. Step 6: Final answer
    x = 260,136.72

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1.5x scale

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.