Home / 219,439.53-328,945.05-107,115.21

Finding the Fourth Proportional to 219,439.53, 328,945.05 and 107,115.21

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Solution

The fourth proportional to 219,439.53, 328,945.05 and 107,115.21 is: 160,568.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,439.53 : 328,945.05 = 107,115.21 : x
  2. Step 2: Convert to fraction form
    219,439.53/328,945.05 = 107,115.21/x
  3. Step 3: Cross multiply
    219,439.53x = 328,945.05 × 107,115.21
  4. Step 4: Simplify right side
    219,439.53x = 35,235,018,109.21
  5. Step 5: Solve for x
    x = 35,235,018,109.21/219,439.53
  6. Step 6: Final answer
    x = 160,568.24

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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.