Home / 223,418.14-335,365.95-90,385.36

Finding the Fourth Proportional to 223,418.14, 335,365.95 and 90,385.36

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Solution

The fourth proportional to 223,418.14, 335,365.95 and 90,385.36 is: 135,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,418.14 : 335,365.95 = 90,385.36 : x
  2. Step 2: Convert to fraction form
    223,418.14/335,365.95 = 90,385.36/x
  3. Step 3: Cross multiply
    223,418.14x = 335,365.95 × 90,385.36
  4. Step 4: Simplify right side
    223,418.14x = 30,312,172,122.49
  5. Step 5: Solve for x
    x = 30,312,172,122.49/223,418.14
  6. Step 6: Final answer
    x = 135,674.62

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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.