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Finding the Fourth Proportional to 402,927.70, 603,662.55 and 192,100.90

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Solution

The fourth proportional to 402,927.70, 603,662.55 and 192,100.90 is: 287,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,927.70 : 603,662.55 = 192,100.90 : x
  2. Step 2: Convert to fraction form
    402,927.70/603,662.55 = 192,100.90/x
  3. Step 3: Cross multiply
    402,927.70x = 603,662.55 × 192,100.90
  4. Step 4: Simplify right side
    402,927.70x = 115,964,119,151.30
  5. Step 5: Solve for x
    x = 115,964,119,151.30/402,927.70
  6. Step 6: Final answer
    x = 287,803.79

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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.