Home / 211,330.70-317,324.10-122,757.20

Finding the Fourth Proportional to 211,330.70, 317,324.10 and 122,757.20

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Solution

The fourth proportional to 211,330.70, 317,324.10 and 122,757.20 is: 184,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,330.70 : 317,324.10 = 122,757.20 : x
  2. Step 2: Convert to fraction form
    211,330.70/317,324.10 = 122,757.20/x
  3. Step 3: Cross multiply
    211,330.70x = 317,324.10 × 122,757.20
  4. Step 4: Simplify right side
    211,330.70x = 38,953,818,008.52
  5. Step 5: Solve for x
    x = 38,953,818,008.52/211,330.70
  6. Step 6: Final answer
    x = 184,326.36

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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.