Home / 280,825.68-387,538.98-159,966.90

Finding the Fourth Proportional to 280,825.68, 387,538.98 and 159,966.90

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Solution

The fourth proportional to 280,825.68, 387,538.98 and 159,966.90 is: 220,754.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,825.68 : 387,538.98 = 159,966.90 : x
  2. Step 2: Convert to fraction form
    280,825.68/387,538.98 = 159,966.90/x
  3. Step 3: Cross multiply
    280,825.68x = 387,538.98 × 159,966.90
  4. Step 4: Simplify right side
    280,825.68x = 61,993,409,559.70
  5. Step 5: Solve for x
    x = 61,993,409,559.70/280,825.68
  6. Step 6: Final answer
    x = 220,754.06

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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.