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Finding the Fourth Proportional to 248,999.35, 343,620.17 and 135,824.53

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Solution

The fourth proportional to 248,999.35, 343,620.17 and 135,824.53 is: 187,438.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,999.35 : 343,620.17 = 135,824.53 : x
  2. Step 2: Convert to fraction form
    248,999.35/343,620.17 = 135,824.53/x
  3. Step 3: Cross multiply
    248,999.35x = 343,620.17 × 135,824.53
  4. Step 4: Simplify right side
    248,999.35x = 46,672,048,088.77
  5. Step 5: Solve for x
    x = 46,672,048,088.77/248,999.35
  6. Step 6: Final answer
    x = 187,438.43

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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.