Home / 211,519.56-317,308.50-71,318.28

Finding the Fourth Proportional to 211,519.56, 317,308.50 and 71,318.28

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Solution

The fourth proportional to 211,519.56, 317,308.50 and 71,318.28 is: 106,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,519.56 : 317,308.50 = 71,318.28 : x
  2. Step 2: Convert to fraction form
    211,519.56/317,308.50 = 71,318.28/x
  3. Step 3: Cross multiply
    211,519.56x = 317,308.50 × 71,318.28
  4. Step 4: Simplify right side
    211,519.56x = 22,629,896,449.38
  5. Step 5: Solve for x
    x = 22,629,896,449.38/211,519.56
  6. Step 6: Final answer
    x = 106,987.25

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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.