Home / 280,821.00-387,487.73-159,964.65

Finding the Fourth Proportional to 280,821.00, 387,487.73 and 159,964.65

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Solution

The fourth proportional to 280,821.00, 387,487.73 and 159,964.65 is: 220,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,821.00 : 387,487.73 = 159,964.65 : x
  2. Step 2: Convert to fraction form
    280,821.00/387,487.73 = 159,964.65/x
  3. Step 3: Cross multiply
    280,821.00x = 387,487.73 × 159,964.65
  4. Step 4: Simplify right side
    280,821.00x = 61,984,339,508.66
  5. Step 5: Solve for x
    x = 61,984,339,508.66/280,821.00
  6. Step 6: Final answer
    x = 220,725.44

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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.