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Finding the Fourth Proportional to 323,320.63, 446,103.78 and 212,927.87

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Solution

The fourth proportional to 323,320.63, 446,103.78 and 212,927.87 is: 293,788.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,320.63 : 446,103.78 = 212,927.87 : x
  2. Step 2: Convert to fraction form
    323,320.63/446,103.78 = 212,927.87/x
  3. Step 3: Cross multiply
    323,320.63x = 446,103.78 × 212,927.87
  4. Step 4: Simplify right side
    323,320.63x = 94,987,927,674.35
  5. Step 5: Solve for x
    x = 94,987,927,674.35/323,320.63
  6. Step 6: Final answer
    x = 293,788.64

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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.