Home / 226,255.21-312,248.91-140,231.08

Finding the Fourth Proportional to 226,255.21, 312,248.91 and 140,231.08

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Solution

The fourth proportional to 226,255.21, 312,248.91 and 140,231.08 is: 193,529.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,255.21 : 312,248.91 = 140,231.08 : x
  2. Step 2: Convert to fraction form
    226,255.21/312,248.91 = 140,231.08/x
  3. Step 3: Cross multiply
    226,255.21x = 312,248.91 × 140,231.08
  4. Step 4: Simplify right side
    226,255.21x = 43,787,001,878.12
  5. Step 5: Solve for x
    x = 43,787,001,878.12/226,255.21
  6. Step 6: Final answer
    x = 193,529.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.