Home / 280,698.08-387,362.97-159,839.35

Finding the Fourth Proportional to 280,698.08, 387,362.97 and 159,839.35

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Solution

The fourth proportional to 280,698.08, 387,362.97 and 159,839.35 is: 220,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,698.08 : 387,362.97 = 159,839.35 : x
  2. Step 2: Convert to fraction form
    280,698.08/387,362.97 = 159,839.35/x
  3. Step 3: Cross multiply
    280,698.08x = 387,362.97 × 159,839.35
  4. Step 4: Simplify right side
    280,698.08x = 61,915,844,370.46
  5. Step 5: Solve for x
    x = 61,915,844,370.46/280,698.08
  6. Step 6: Final answer
    x = 220,578.09

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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.