Home / 211,775.33-317,580.21-76,807.37

Finding the Fourth Proportional to 211,775.33, 317,580.21 and 76,807.37

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Solution

The fourth proportional to 211,775.33, 317,580.21 and 76,807.37 is: 115,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,775.33 : 317,580.21 = 76,807.37 : x
  2. Step 2: Convert to fraction form
    211,775.33/317,580.21 = 76,807.37/x
  3. Step 3: Cross multiply
    211,775.33x = 317,580.21 × 76,807.37
  4. Step 4: Simplify right side
    211,775.33x = 24,392,499,106.25
  5. Step 5: Solve for x
    x = 24,392,499,106.25/211,775.33
  6. Step 6: Final answer
    x = 115,181.03

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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.