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Finding the Fourth Proportional to 218,619.92, 301,607.84 and 133,589.36

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Solution

The fourth proportional to 218,619.92, 301,607.84 and 133,589.36 is: 184,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,619.92 : 301,607.84 = 133,589.36 : x
  2. Step 2: Convert to fraction form
    218,619.92/301,607.84 = 133,589.36/x
  3. Step 3: Cross multiply
    218,619.92x = 301,607.84 × 133,589.36
  4. Step 4: Simplify right side
    218,619.92x = 40,291,598,316.58
  5. Step 5: Solve for x
    x = 40,291,598,316.58/218,619.92
  6. Step 6: Final answer
    x = 184,299.76

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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.