Home / 219,777.29-303,331.49-129,133.22

Finding the Fourth Proportional to 219,777.29, 303,331.49 and 129,133.22

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Solution

The fourth proportional to 219,777.29, 303,331.49 and 129,133.22 is: 178,226.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,777.29 : 303,331.49 = 129,133.22 : x
  2. Step 2: Convert to fraction form
    219,777.29/303,331.49 = 129,133.22/x
  3. Step 3: Cross multiply
    219,777.29x = 303,331.49 × 129,133.22
  4. Step 4: Simplify right side
    219,777.29x = 39,170,169,868.77
  5. Step 5: Solve for x
    x = 39,170,169,868.77/219,777.29
  6. Step 6: Final answer
    x = 178,226.65

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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.