Home / 219,872.07-303,430.92-129,226.74

Finding the Fourth Proportional to 219,872.07, 303,430.92 and 129,226.74

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Solution

The fourth proportional to 219,872.07, 303,430.92 and 129,226.74 is: 178,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,872.07 : 303,430.92 = 129,226.74 : x
  2. Step 2: Convert to fraction form
    219,872.07/303,430.92 = 129,226.74/x
  3. Step 3: Cross multiply
    219,872.07x = 303,430.92 × 129,226.74
  4. Step 4: Simplify right side
    219,872.07x = 39,211,388,606.80
  5. Step 5: Solve for x
    x = 39,211,388,606.80/219,872.07
  6. Step 6: Final answer
    x = 178,337.29

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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.