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Finding the Fourth Proportional to 248,605.45, 343,077.79 and 150,490.94

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Solution

The fourth proportional to 248,605.45, 343,077.79 and 150,490.94 is: 207,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,605.45 : 343,077.79 = 150,490.94 : x
  2. Step 2: Convert to fraction form
    248,605.45/343,077.79 = 150,490.94/x
  3. Step 3: Cross multiply
    248,605.45x = 343,077.79 × 150,490.94
  4. Step 4: Simplify right side
    248,605.45x = 51,630,099,591.69
  5. Step 5: Solve for x
    x = 51,630,099,591.69/248,605.45
  6. Step 6: Final answer
    x = 207,678.87

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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.