Home / 439,705.25-659,113.84-211,665.95

Finding the Fourth Proportional to 439,705.25, 659,113.84 and 211,665.95

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Solution

The fourth proportional to 439,705.25, 659,113.84 and 211,665.95 is: 317,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,705.25 : 659,113.84 = 211,665.95 : x
  2. Step 2: Convert to fraction form
    439,705.25/659,113.84 = 211,665.95/x
  3. Step 3: Cross multiply
    439,705.25x = 659,113.84 × 211,665.95
  4. Step 4: Simplify right side
    439,705.25x = 139,511,955,748.69
  5. Step 5: Solve for x
    x = 139,511,955,748.69/439,705.25
  6. Step 6: Final answer
    x = 317,285.17

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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.