Home / 220,058.96-303,634.64-129,381.84

Finding the Fourth Proportional to 220,058.96, 303,634.64 and 129,381.84

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Solution

The fourth proportional to 220,058.96, 303,634.64 and 129,381.84 is: 178,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,058.96 : 303,634.64 = 129,381.84 : x
  2. Step 2: Convert to fraction form
    220,058.96/303,634.64 = 129,381.84/x
  3. Step 3: Cross multiply
    220,058.96x = 303,634.64 × 129,381.84
  4. Step 4: Simplify right side
    220,058.96x = 39,284,808,410.94
  5. Step 5: Solve for x
    x = 39,284,808,410.94/220,058.96
  6. Step 6: Final answer
    x = 178,519.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.