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Finding the Fourth Proportional to 295,321.28, 407,325.80 and 222,727.20

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Solution

The fourth proportional to 295,321.28, 407,325.80 and 222,727.20 is: 307,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,321.28 : 407,325.80 = 222,727.20 : x
  2. Step 2: Convert to fraction form
    295,321.28/407,325.80 = 222,727.20/x
  3. Step 3: Cross multiply
    295,321.28x = 407,325.80 × 222,727.20
  4. Step 4: Simplify right side
    295,321.28x = 90,722,534,921.76
  5. Step 5: Solve for x
    x = 90,722,534,921.76/295,321.28
  6. Step 6: Final answer
    x = 307,199.45

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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.