Home / 253,227.09-379,729.85-120,145.31

Finding the Fourth Proportional to 253,227.09, 379,729.85 and 120,145.31

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Solution

The fourth proportional to 253,227.09, 379,729.85 and 120,145.31 is: 180,165.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,227.09 : 379,729.85 = 120,145.31 : x
  2. Step 2: Convert to fraction form
    253,227.09/379,729.85 = 120,145.31/x
  3. Step 3: Cross multiply
    253,227.09x = 379,729.85 × 120,145.31
  4. Step 4: Simplify right side
    253,227.09x = 45,622,758,045.13
  5. Step 5: Solve for x
    x = 45,622,758,045.13/253,227.09
  6. Step 6: Final answer
    x = 180,165.39

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1.5x scale

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.