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Finding the Fourth Proportional to 250,329.39, 376,281.41 and 217,458.78

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Solution

The fourth proportional to 250,329.39, 376,281.41 and 217,458.78 is: 326,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,329.39 : 376,281.41 = 217,458.78 : x
  2. Step 2: Convert to fraction form
    250,329.39/376,281.41 = 217,458.78/x
  3. Step 3: Cross multiply
    250,329.39x = 376,281.41 × 217,458.78
  4. Step 4: Simplify right side
    250,329.39x = 81,825,695,267.99
  5. Step 5: Solve for x
    x = 81,825,695,267.99/250,329.39
  6. Step 6: Final answer
    x = 326,872.11

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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.