Home / 211,556.30-317,335.19-53,784.77

Finding the Fourth Proportional to 211,556.30, 317,335.19 and 53,784.77

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Solution

The fourth proportional to 211,556.30, 317,335.19 and 53,784.77 is: 80,677.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,556.30 : 317,335.19 = 53,784.77 : x
  2. Step 2: Convert to fraction form
    211,556.30/317,335.19 = 53,784.77/x
  3. Step 3: Cross multiply
    211,556.30x = 317,335.19 × 53,784.77
  4. Step 4: Simplify right side
    211,556.30x = 17,067,798,351.46
  5. Step 5: Solve for x
    x = 17,067,798,351.46/211,556.30
  6. Step 6: Final answer
    x = 80,677.34

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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.