Home / 280,711.72-421,069.41-112,246.21

Finding the Fourth Proportional to 280,711.72, 421,069.41 and 112,246.21

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Solution

The fourth proportional to 280,711.72, 421,069.41 and 112,246.21 is: 168,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,711.72 : 421,069.41 = 112,246.21 : x
  2. Step 2: Convert to fraction form
    280,711.72/421,069.41 = 112,246.21/x
  3. Step 3: Cross multiply
    280,711.72x = 421,069.41 × 112,246.21
  4. Step 4: Simplify right side
    280,711.72x = 47,263,445,419.44
  5. Step 5: Solve for x
    x = 47,263,445,419.44/280,711.72
  6. Step 6: Final answer
    x = 168,370.05

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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.