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Finding the Fourth Proportional to 322,855.84, 445,547.28 and 188,797.60

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Solution

The fourth proportional to 322,855.84, 445,547.28 and 188,797.60 is: 260,544.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,855.84 : 445,547.28 = 188,797.60 : x
  2. Step 2: Convert to fraction form
    322,855.84/445,547.28 = 188,797.60/x
  3. Step 3: Cross multiply
    322,855.84x = 445,547.28 × 188,797.60
  4. Step 4: Simplify right side
    322,855.84x = 84,118,257,150.53
  5. Step 5: Solve for x
    x = 84,118,257,150.53/322,855.84
  6. Step 6: Final answer
    x = 260,544.33

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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.