Home / 251,138.96-346,571.68-137,961.60

Finding the Fourth Proportional to 251,138.96, 346,571.68 and 137,961.60

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Solution

The fourth proportional to 251,138.96, 346,571.68 and 137,961.60 is: 190,386.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,138.96 : 346,571.68 = 137,961.60 : x
  2. Step 2: Convert to fraction form
    251,138.96/346,571.68 = 137,961.60/x
  3. Step 3: Cross multiply
    251,138.96x = 346,571.68 × 137,961.60
  4. Step 4: Simplify right side
    251,138.96x = 47,813,583,487.49
  5. Step 5: Solve for x
    x = 47,813,583,487.49/251,138.96
  6. Step 6: Final answer
    x = 190,386.96

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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.