Home / 253,719.72-380,578.46-76,225.96

Finding the Fourth Proportional to 253,719.72, 380,578.46 and 76,225.96

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Solution

The fourth proportional to 253,719.72, 380,578.46 and 76,225.96 is: 114,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,719.72 : 380,578.46 = 76,225.96 : x
  2. Step 2: Convert to fraction form
    253,719.72/380,578.46 = 76,225.96/x
  3. Step 3: Cross multiply
    253,719.72x = 380,578.46 × 76,225.96
  4. Step 4: Simplify right side
    253,719.72x = 29,009,958,468.82
  5. Step 5: Solve for x
    x = 29,009,958,468.82/253,719.72
  6. Step 6: Final answer
    x = 114,338.60

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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.