Home / 219,849.76-303,281.04-139,141.28

Finding the Fourth Proportional to 219,849.76, 303,281.04 and 139,141.28

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Solution

The fourth proportional to 219,849.76, 303,281.04 and 139,141.28 is: 191,944.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,849.76 : 303,281.04 = 139,141.28 : x
  2. Step 2: Convert to fraction form
    219,849.76/303,281.04 = 139,141.28/x
  3. Step 3: Cross multiply
    219,849.76x = 303,281.04 × 139,141.28
  4. Step 4: Simplify right side
    219,849.76x = 42,198,912,105.33
  5. Step 5: Solve for x
    x = 42,198,912,105.33/219,849.76
  6. Step 6: Final answer
    x = 191,944.32

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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.