Home / 280,535.85-421,426.59-173,998.56

Finding the Fourth Proportional to 280,535.85, 421,426.59 and 173,998.56

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Solution

The fourth proportional to 280,535.85, 421,426.59 and 173,998.56 is: 261,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,535.85 : 421,426.59 = 173,998.56 : x
  2. Step 2: Convert to fraction form
    280,535.85/421,426.59 = 173,998.56/x
  3. Step 3: Cross multiply
    280,535.85x = 421,426.59 × 173,998.56
  4. Step 4: Simplify right side
    280,535.85x = 73,327,619,805.71
  5. Step 5: Solve for x
    x = 73,327,619,805.71/280,535.85
  6. Step 6: Final answer
    x = 261,384.13

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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.