Home / 320,376.56-442,105.64-175,179.60

Finding the Fourth Proportional to 320,376.56, 442,105.64 and 175,179.60

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Solution

The fourth proportional to 320,376.56, 442,105.64 and 175,179.60 is: 241,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,376.56 : 442,105.64 = 175,179.60 : x
  2. Step 2: Convert to fraction form
    320,376.56/442,105.64 = 175,179.60/x
  3. Step 3: Cross multiply
    320,376.56x = 442,105.64 × 175,179.60
  4. Step 4: Simplify right side
    320,376.56x = 77,447,888,297.05
  5. Step 5: Solve for x
    x = 77,447,888,297.05/320,376.56
  6. Step 6: Final answer
    x = 241,740.19

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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.