Home / 253,971.40-381,033.24-76,484.20

Finding the Fourth Proportional to 253,971.40, 381,033.24 and 76,484.20

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Solution

The fourth proportional to 253,971.40, 381,033.24 and 76,484.20 is: 114,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,971.40 : 381,033.24 = 76,484.20 : x
  2. Step 2: Convert to fraction form
    253,971.40/381,033.24 = 76,484.20/x
  3. Step 3: Cross multiply
    253,971.40x = 381,033.24 × 76,484.20
  4. Step 4: Simplify right side
    253,971.40x = 29,143,022,534.81
  5. Step 5: Solve for x
    x = 29,143,022,534.81/253,971.40
  6. Step 6: Final answer
    x = 114,749.23

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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.