Home / 211,629.40-317,476.26-69,427.48

Finding the Fourth Proportional to 211,629.40, 317,476.26 and 69,427.48

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Solution

The fourth proportional to 211,629.40, 317,476.26 and 69,427.48 is: 104,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,629.40 : 317,476.26 = 69,427.48 : x
  2. Step 2: Convert to fraction form
    211,629.40/317,476.26 = 69,427.48/x
  3. Step 3: Cross multiply
    211,629.40x = 317,476.26 × 69,427.48
  4. Step 4: Simplify right side
    211,629.40x = 22,041,576,691.62
  5. Step 5: Solve for x
    x = 22,041,576,691.62/211,629.40
  6. Step 6: Final answer
    x = 104,151.77

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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.