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Finding the Fourth Proportional to 247,050, 340,929 and 133,872.75

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Solution

The fourth proportional to 247,050, 340,929 and 133,872.75 is: 184,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,050 : 340,929 = 133,872.75 : x
  2. Step 2: Convert to fraction form
    247,050/340,929 = 133,872.75/x
  3. Step 3: Cross multiply
    247,050x = 340,929 × 133,872.75
  4. Step 4: Simplify right side
    247,050x = 45,641,102,784.75
  5. Step 5: Solve for x
    x = 45,641,102,784.75/247,050
  6. Step 6: Final answer
    x = 184,744.40

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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.