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Finding the Fourth Proportional to 418,004.50, 626,809.01 and 161,956.92

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Solution

The fourth proportional to 418,004.50, 626,809.01 and 161,956.92 is: 242,858.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,004.50 : 626,809.01 = 161,956.92 : x
  2. Step 2: Convert to fraction form
    418,004.50/626,809.01 = 161,956.92/x
  3. Step 3: Cross multiply
    418,004.50x = 626,809.01 × 161,956.92
  4. Step 4: Simplify right side
    418,004.50x = 101,516,055,158.30
  5. Step 5: Solve for x
    x = 101,516,055,158.30/418,004.50
  6. Step 6: Final answer
    x = 242,858.76

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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.