Home / 253,580.33-380,407.58-76,101.36

Finding the Fourth Proportional to 253,580.33, 380,407.58 and 76,101.36

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Solution

The fourth proportional to 253,580.33, 380,407.58 and 76,101.36 is: 114,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,580.33 : 380,407.58 = 76,101.36 : x
  2. Step 2: Convert to fraction form
    253,580.33/380,407.58 = 76,101.36/x
  3. Step 3: Cross multiply
    253,580.33x = 380,407.58 × 76,101.36
  4. Step 4: Simplify right side
    253,580.33x = 28,949,533,811.80
  5. Step 5: Solve for x
    x = 28,949,533,811.80/253,580.33
  6. Step 6: Final answer
    x = 114,163.17

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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.