Home / 226,286.12-312,240.15-130,774.38

Finding the Fourth Proportional to 226,286.12, 312,240.15 and 130,774.38

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Solution

The fourth proportional to 226,286.12, 312,240.15 and 130,774.38 is: 180,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,286.12 : 312,240.15 = 130,774.38 : x
  2. Step 2: Convert to fraction form
    226,286.12/312,240.15 = 130,774.38/x
  3. Step 3: Cross multiply
    226,286.12x = 312,240.15 × 130,774.38
  4. Step 4: Simplify right side
    226,286.12x = 40,833,012,027.36
  5. Step 5: Solve for x
    x = 40,833,012,027.36/226,286.12
  6. Step 6: Final answer
    x = 180,448.60

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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.