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Finding the Fourth Proportional to 303,473.86, 418,731.40 and 174,387.40

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Solution

The fourth proportional to 303,473.86, 418,731.40 and 174,387.40 is: 240,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,473.86 : 418,731.40 = 174,387.40 : x
  2. Step 2: Convert to fraction form
    303,473.86/418,731.40 = 174,387.40/x
  3. Step 3: Cross multiply
    303,473.86x = 418,731.40 × 174,387.40
  4. Step 4: Simplify right side
    303,473.86x = 73,021,480,144.36
  5. Step 5: Solve for x
    x = 73,021,480,144.36/303,473.86
  6. Step 6: Final answer
    x = 240,618.68

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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.