Home / 219,410.20-329,018.10-101,117.80

Finding the Fourth Proportional to 219,410.20, 329,018.10 and 101,117.80

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Solution

The fourth proportional to 219,410.20, 329,018.10 and 101,117.80 is: 151,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,410.20 : 329,018.10 = 101,117.80 : x
  2. Step 2: Convert to fraction form
    219,410.20/329,018.10 = 101,117.80/x
  3. Step 3: Cross multiply
    219,410.20x = 329,018.10 × 101,117.80
  4. Step 4: Simplify right side
    219,410.20x = 33,269,586,432.18
  5. Step 5: Solve for x
    x = 33,269,586,432.18/219,410.20
  6. Step 6: Final answer
    x = 151,631.90

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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.