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Finding the Fourth Proportional to 358,665.90, 494,777.34 and 222,780.30

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Solution

The fourth proportional to 358,665.90, 494,777.34 and 222,780.30 is: 307,324.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,665.90 : 494,777.34 = 222,780.30 : x
  2. Step 2: Convert to fraction form
    358,665.90/494,777.34 = 222,780.30/x
  3. Step 3: Cross multiply
    358,665.90x = 494,777.34 × 222,780.30
  4. Step 4: Simplify right side
    358,665.90x = 110,226,644,238.40
  5. Step 5: Solve for x
    x = 110,226,644,238.40/358,665.90
  6. Step 6: Final answer
    x = 307,324.01

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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.