Home / 320,611.56-442,416.10-177,369.32

Finding the Fourth Proportional to 320,611.56, 442,416.10 and 177,369.32

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Solution

The fourth proportional to 320,611.56, 442,416.10 and 177,369.32 is: 244,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,611.56 : 442,416.10 = 177,369.32 : x
  2. Step 2: Convert to fraction form
    320,611.56/442,416.10 = 177,369.32/x
  3. Step 3: Cross multiply
    320,611.56x = 442,416.10 × 177,369.32
  4. Step 4: Simplify right side
    320,611.56x = 78,471,042,814.05
  5. Step 5: Solve for x
    x = 78,471,042,814.05/320,611.56
  6. Step 6: Final answer
    x = 244,754.25

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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.