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Finding the Fourth Proportional to 376,453.04, 519,357.02 and 215,221.46

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Solution

The fourth proportional to 376,453.04, 519,357.02 and 215,221.46 is: 296,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,453.04 : 519,357.02 = 215,221.46 : x
  2. Step 2: Convert to fraction form
    376,453.04/519,357.02 = 215,221.46/x
  3. Step 3: Cross multiply
    376,453.04x = 519,357.02 × 215,221.46
  4. Step 4: Simplify right side
    376,453.04x = 111,776,776,105.65
  5. Step 5: Solve for x
    x = 111,776,776,105.65/376,453.04
  6. Step 6: Final answer
    x = 296,920.90

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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.