Home / 211,828.77-317,589.30-99,451.17

Finding the Fourth Proportional to 211,828.77, 317,589.30 and 99,451.17

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Solution

The fourth proportional to 211,828.77, 317,589.30 and 99,451.17 is: 149,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,828.77 : 317,589.30 = 99,451.17 : x
  2. Step 2: Convert to fraction form
    211,828.77/317,589.30 = 99,451.17/x
  3. Step 3: Cross multiply
    211,828.77x = 317,589.30 × 99,451.17
  4. Step 4: Simplify right side
    211,828.77x = 31,584,627,464.48
  5. Step 5: Solve for x
    x = 31,584,627,464.48/211,828.77
  6. Step 6: Final answer
    x = 149,104.52

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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.