Home / 280,619.52-421,033.83-168,380.29

Finding the Fourth Proportional to 280,619.52, 421,033.83 and 168,380.29

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Solution

The fourth proportional to 280,619.52, 421,033.83 and 168,380.29 is: 252,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,619.52 : 421,033.83 = 168,380.29 : x
  2. Step 2: Convert to fraction form
    280,619.52/421,033.83 = 168,380.29/x
  3. Step 3: Cross multiply
    280,619.52x = 421,033.83 × 168,380.29
  4. Step 4: Simplify right side
    280,619.52x = 70,893,798,395.21
  5. Step 5: Solve for x
    x = 70,893,798,395.21/280,619.52
  6. Step 6: Final answer
    x = 252,633.17

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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.