Home / 219,438.35-329,252.61-77,385.13

Finding the Fourth Proportional to 219,438.35, 329,252.61 and 77,385.13

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Solution

The fourth proportional to 219,438.35, 329,252.61 and 77,385.13 is: 116,111.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,438.35 : 329,252.61 = 77,385.13 : x
  2. Step 2: Convert to fraction form
    219,438.35/329,252.61 = 77,385.13/x
  3. Step 3: Cross multiply
    219,438.35x = 329,252.61 × 77,385.13
  4. Step 4: Simplify right side
    219,438.35x = 25,479,256,027.69
  5. Step 5: Solve for x
    x = 25,479,256,027.69/219,438.35
  6. Step 6: Final answer
    x = 116,111.23

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1.5x scale

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.