Home / 211,764.78-317,579.81-69,577.28

Finding the Fourth Proportional to 211,764.78, 317,579.81 and 69,577.28

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Solution

The fourth proportional to 211,764.78, 317,579.81 and 69,577.28 is: 104,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,764.78 : 317,579.81 = 69,577.28 : x
  2. Step 2: Convert to fraction form
    211,764.78/317,579.81 = 69,577.28/x
  3. Step 3: Cross multiply
    211,764.78x = 317,579.81 × 69,577.28
  4. Step 4: Simplify right side
    211,764.78x = 22,096,340,069.69
  5. Step 5: Solve for x
    x = 22,096,340,069.69/211,764.78
  6. Step 6: Final answer
    x = 104,343.79

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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.