Home / 221,805.44-306,100.32-126,316.16

Finding the Fourth Proportional to 221,805.44, 306,100.32 and 126,316.16

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Solution

The fourth proportional to 221,805.44, 306,100.32 and 126,316.16 is: 174,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,805.44 : 306,100.32 = 126,316.16 : x
  2. Step 2: Convert to fraction form
    221,805.44/306,100.32 = 126,316.16/x
  3. Step 3: Cross multiply
    221,805.44x = 306,100.32 × 126,316.16
  4. Step 4: Simplify right side
    221,805.44x = 38,665,416,997.17
  5. Step 5: Solve for x
    x = 38,665,416,997.17/221,805.44
  6. Step 6: Final answer
    x = 174,321.32

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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.