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Finding the Fourth Proportional to 218,160.72, 300,989.37 and 177,805.08

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Solution

The fourth proportional to 218,160.72, 300,989.37 and 177,805.08 is: 245,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,160.72 : 300,989.37 = 177,805.08 : x
  2. Step 2: Convert to fraction form
    218,160.72/300,989.37 = 177,805.08/x
  3. Step 3: Cross multiply
    218,160.72x = 300,989.37 × 177,805.08
  4. Step 4: Simplify right side
    218,160.72x = 53,517,439,012.00
  5. Step 5: Solve for x
    x = 53,517,439,012.00/218,160.72
  6. Step 6: Final answer
    x = 245,311.98

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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.