Home / 314,919.40-472,236.94-90,228.42

Finding the Fourth Proportional to 314,919.40, 472,236.94 and 90,228.42

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Solution

The fourth proportional to 314,919.40, 472,236.94 and 90,228.42 is: 135,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,919.40 : 472,236.94 = 90,228.42 : x
  2. Step 2: Convert to fraction form
    314,919.40/472,236.94 = 90,228.42/x
  3. Step 3: Cross multiply
    314,919.40x = 472,236.94 × 90,228.42
  4. Step 4: Simplify right side
    314,919.40x = 42,609,192,961.83
  5. Step 5: Solve for x
    x = 42,609,192,961.83/314,919.40
  6. Step 6: Final answer
    x = 135,301.90

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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.