Home / 280,554.27-420,972.18-130,806.28

Finding the Fourth Proportional to 280,554.27, 420,972.18 and 130,806.28

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Solution

The fourth proportional to 280,554.27, 420,972.18 and 130,806.28 is: 196,275.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,554.27 : 420,972.18 = 130,806.28 : x
  2. Step 2: Convert to fraction form
    280,554.27/420,972.18 = 130,806.28/x
  3. Step 3: Cross multiply
    280,554.27x = 420,972.18 × 130,806.28
  4. Step 4: Simplify right side
    280,554.27x = 55,065,804,849.29
  5. Step 5: Solve for x
    x = 55,065,804,849.29/280,554.27
  6. Step 6: Final answer
    x = 196,275.06

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1.5x scale

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.