Home / 211,807.80-317,514.06-71,468.28

Finding the Fourth Proportional to 211,807.80, 317,514.06 and 71,468.28

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Solution

The fourth proportional to 211,807.80, 317,514.06 and 71,468.28 is: 107,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,807.80 : 317,514.06 = 71,468.28 : x
  2. Step 2: Convert to fraction form
    211,807.80/317,514.06 = 71,468.28/x
  3. Step 3: Cross multiply
    211,807.80x = 317,514.06 × 71,468.28
  4. Step 4: Simplify right side
    211,807.80x = 22,692,183,744.02
  5. Step 5: Solve for x
    x = 22,692,183,744.02/211,807.80
  6. Step 6: Final answer
    x = 107,135.73

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1.5x scale

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.