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Finding the Fourth Proportional to 248,777.70, 343,313.32 and 141,347.87

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Solution

The fourth proportional to 248,777.70, 343,313.32 and 141,347.87 is: 195,060.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,777.70 : 343,313.32 = 141,347.87 : x
  2. Step 2: Convert to fraction form
    248,777.70/343,313.32 = 141,347.87/x
  3. Step 3: Cross multiply
    248,777.70x = 343,313.32 × 141,347.87
  4. Step 4: Simplify right side
    248,777.70x = 48,526,606,007.14
  5. Step 5: Solve for x
    x = 48,526,606,007.14/248,777.70
  6. Step 6: Final answer
    x = 195,060.11

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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.