Home / 251,601.50-347,217.36-138,431.54

Finding the Fourth Proportional to 251,601.50, 347,217.36 and 138,431.54

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Solution

The fourth proportional to 251,601.50, 347,217.36 and 138,431.54 is: 191,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,601.50 : 347,217.36 = 138,431.54 : x
  2. Step 2: Convert to fraction form
    251,601.50/347,217.36 = 138,431.54/x
  3. Step 3: Cross multiply
    251,601.50x = 347,217.36 × 138,431.54
  4. Step 4: Simplify right side
    251,601.50x = 48,065,833,859.53
  5. Step 5: Solve for x
    x = 48,065,833,859.53/251,601.50
  6. Step 6: Final answer
    x = 191,039.54

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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.