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Finding the Fourth Proportional to 247,036.15, 340,909.59 and 133,858.90

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Solution

The fourth proportional to 247,036.15, 340,909.59 and 133,858.90 is: 184,725.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,036.15 : 340,909.59 = 133,858.90 : x
  2. Step 2: Convert to fraction form
    247,036.15/340,909.59 = 133,858.90/x
  3. Step 3: Cross multiply
    247,036.15x = 340,909.59 × 133,858.90
  4. Step 4: Simplify right side
    247,036.15x = 45,633,782,716.85
  5. Step 5: Solve for x
    x = 45,633,782,716.85/247,036.15
  6. Step 6: Final answer
    x = 184,725.12

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1.5x scale

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.