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Finding the Fourth Proportional to 303,940, 419,425.86 and 174,898.40

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Solution

The fourth proportional to 303,940, 419,425.86 and 174,898.40 is: 241,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,940 : 419,425.86 = 174,898.40 : x
  2. Step 2: Convert to fraction form
    303,940/419,425.86 = 174,898.40/x
  3. Step 3: Cross multiply
    303,940x = 419,425.86 × 174,898.40
  4. Step 4: Simplify right side
    303,940x = 73,356,911,832.62
  5. Step 5: Solve for x
    x = 73,356,911,832.62/303,940
  6. Step 6: Final answer
    x = 241,353.27

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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.