Home / 253,233.07-379,738.80-120,151.28

Finding the Fourth Proportional to 253,233.07, 379,738.80 and 120,151.28

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Solution

The fourth proportional to 253,233.07, 379,738.80 and 120,151.28 is: 180,174.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,233.07 : 379,738.80 = 120,151.28 : x
  2. Step 2: Convert to fraction form
    253,233.07/379,738.80 = 120,151.28/x
  3. Step 3: Cross multiply
    253,233.07x = 379,738.80 × 120,151.28
  4. Step 4: Simplify right side
    253,233.07x = 45,626,103,835.01
  5. Step 5: Solve for x
    x = 45,626,103,835.01/253,233.07
  6. Step 6: Final answer
    x = 180,174.35

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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.