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Finding the Fourth Proportional to 419,832.40, 629,748.60 and 153,601.60

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Solution

The fourth proportional to 419,832.40, 629,748.60 and 153,601.60 is: 230,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,832.40 : 629,748.60 = 153,601.60 : x
  2. Step 2: Convert to fraction form
    419,832.40/629,748.60 = 153,601.60/x
  3. Step 3: Cross multiply
    419,832.40x = 629,748.60 × 153,601.60
  4. Step 4: Simplify right side
    419,832.40x = 96,730,392,557.76
  5. Step 5: Solve for x
    x = 96,730,392,557.76/419,832.40
  6. Step 6: Final answer
    x = 230,402.40

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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.