Home / 280,759.24-387,447.12-159,900.52

Finding the Fourth Proportional to 280,759.24, 387,447.12 and 159,900.52

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Solution

The fourth proportional to 280,759.24, 387,447.12 and 159,900.52 is: 220,662.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,759.24 : 387,447.12 = 159,900.52 : x
  2. Step 2: Convert to fraction form
    280,759.24/387,447.12 = 159,900.52/x
  3. Step 3: Cross multiply
    280,759.24x = 387,447.12 × 159,900.52
  4. Step 4: Simplify right side
    280,759.24x = 61,952,995,960.50
  5. Step 5: Solve for x
    x = 61,952,995,960.50/280,759.24
  6. Step 6: Final answer
    x = 220,662.36

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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.