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Finding the Fourth Proportional to 305,662.60, 421,806.17 and 183,224.14

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Solution

The fourth proportional to 305,662.60, 421,806.17 and 183,224.14 is: 252,844.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,662.60 : 421,806.17 = 183,224.14 : x
  2. Step 2: Convert to fraction form
    305,662.60/421,806.17 = 183,224.14/x
  3. Step 3: Cross multiply
    305,662.60x = 421,806.17 × 183,224.14
  4. Step 4: Simplify right side
    305,662.60x = 77,285,072,483.99
  5. Step 5: Solve for x
    x = 77,285,072,483.99/305,662.60
  6. Step 6: Final answer
    x = 252,844.39

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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.