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Finding the Fourth Proportional to 322,483.78, 445,226.79 and 207,802.90

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Solution

The fourth proportional to 322,483.78, 445,226.79 and 207,802.90 is: 286,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,483.78 : 445,226.79 = 207,802.90 : x
  2. Step 2: Convert to fraction form
    322,483.78/445,226.79 = 207,802.90/x
  3. Step 3: Cross multiply
    322,483.78x = 445,226.79 × 207,802.90
  4. Step 4: Simplify right side
    322,483.78x = 92,519,418,119.69
  5. Step 5: Solve for x
    x = 92,519,418,119.69/322,483.78
  6. Step 6: Final answer
    x = 286,896.35

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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.