Home / 219,487.05-328,976.46-100,909.53

Finding the Fourth Proportional to 219,487.05, 328,976.46 and 100,909.53

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Solution

The fourth proportional to 219,487.05, 328,976.46 and 100,909.53 is: 151,247.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,487.05 : 328,976.46 = 100,909.53 : x
  2. Step 2: Convert to fraction form
    219,487.05/328,976.46 = 100,909.53/x
  3. Step 3: Cross multiply
    219,487.05x = 328,976.46 × 100,909.53
  4. Step 4: Simplify right side
    219,487.05x = 33,196,859,959.66
  5. Step 5: Solve for x
    x = 33,196,859,959.66/219,487.05
  6. Step 6: Final answer
    x = 151,247.47

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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.