Home / 211,868.64-317,803.52-51,945.30

Finding the Fourth Proportional to 211,868.64, 317,803.52 and 51,945.30

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Solution

The fourth proportional to 211,868.64, 317,803.52 and 51,945.30 is: 77,918.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,868.64 : 317,803.52 = 51,945.30 : x
  2. Step 2: Convert to fraction form
    211,868.64/317,803.52 = 51,945.30/x
  3. Step 3: Cross multiply
    211,868.64x = 317,803.52 × 51,945.30
  4. Step 4: Simplify right side
    211,868.64x = 16,508,399,187.46
  5. Step 5: Solve for x
    x = 16,508,399,187.46/211,868.64
  6. Step 6: Final answer
    x = 77,918.09

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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.