Home / 211,625.31-317,434.51-85,262.50

Finding the Fourth Proportional to 211,625.31, 317,434.51 and 85,262.50

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Solution

The fourth proportional to 211,625.31, 317,434.51 and 85,262.50 is: 127,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,625.31 : 317,434.51 = 85,262.50 : x
  2. Step 2: Convert to fraction form
    211,625.31/317,434.51 = 85,262.50/x
  3. Step 3: Cross multiply
    211,625.31x = 317,434.51 × 85,262.50
  4. Step 4: Simplify right side
    211,625.31x = 27,065,260,164.14
  5. Step 5: Solve for x
    x = 27,065,260,164.14/211,625.31
  6. Step 6: Final answer
    x = 127,892.36

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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.