Home / 211,450.74-317,145.24-61,650.78

Finding the Fourth Proportional to 211,450.74, 317,145.24 and 61,650.78

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Solution

The fourth proportional to 211,450.74, 317,145.24 and 61,650.78 is: 92,467.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,450.74 : 317,145.24 = 61,650.78 : x
  2. Step 2: Convert to fraction form
    211,450.74/317,145.24 = 61,650.78/x
  3. Step 3: Cross multiply
    211,450.74x = 317,145.24 × 61,650.78
  4. Step 4: Simplify right side
    211,450.74x = 19,552,251,419.29
  5. Step 5: Solve for x
    x = 19,552,251,419.29/211,450.74
  6. Step 6: Final answer
    x = 92,467.17

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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.