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Finding the Fourth Proportional to 247,108.78, 370,529.94 and 133,317.58

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Solution

The fourth proportional to 247,108.78, 370,529.94 and 133,317.58 is: 199,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,108.78 : 370,529.94 = 133,317.58 : x
  2. Step 2: Convert to fraction form
    247,108.78/370,529.94 = 133,317.58/x
  3. Step 3: Cross multiply
    247,108.78x = 370,529.94 × 133,317.58
  4. Step 4: Simplify right side
    247,108.78x = 49,398,154,918.35
  5. Step 5: Solve for x
    x = 49,398,154,918.35/247,108.78
  6. Step 6: Final answer
    x = 199,904.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.