Home / 261,998.21-393,073.86-84,501.29

Finding the Fourth Proportional to 261,998.21, 393,073.86 and 84,501.29

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Solution

The fourth proportional to 261,998.21, 393,073.86 and 84,501.29 is: 126,776.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,998.21 : 393,073.86 = 84,501.29 : x
  2. Step 2: Convert to fraction form
    261,998.21/393,073.86 = 84,501.29/x
  3. Step 3: Cross multiply
    261,998.21x = 393,073.86 × 84,501.29
  4. Step 4: Simplify right side
    261,998.21x = 33,215,248,235.28
  5. Step 5: Solve for x
    x = 33,215,248,235.28/261,998.21
  6. Step 6: Final answer
    x = 126,776.62

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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.