Home / 211,308.75-316,889.82-84,911.49

Finding the Fourth Proportional to 211,308.75, 316,889.82 and 84,911.49

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Solution

The fourth proportional to 211,308.75, 316,889.82 and 84,911.49 is: 127,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,308.75 : 316,889.82 = 84,911.49 : x
  2. Step 2: Convert to fraction form
    211,308.75/316,889.82 = 84,911.49/x
  3. Step 3: Cross multiply
    211,308.75x = 316,889.82 × 84,911.49
  4. Step 4: Simplify right side
    211,308.75x = 26,907,586,782.03
  5. Step 5: Solve for x
    x = 26,907,586,782.03/211,308.75
  6. Step 6: Final answer
    x = 127,337.78

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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.