Home / 281,867.32-389,100.94-197,316.28

Finding the Fourth Proportional to 281,867.32, 389,100.94 and 197,316.28

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Solution

The fourth proportional to 281,867.32, 389,100.94 and 197,316.28 is: 272,383.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,867.32 : 389,100.94 = 197,316.28 : x
  2. Step 2: Convert to fraction form
    281,867.32/389,100.94 = 197,316.28/x
  3. Step 3: Cross multiply
    281,867.32x = 389,100.94 × 197,316.28
  4. Step 4: Simplify right side
    281,867.32x = 76,775,950,025.30
  5. Step 5: Solve for x
    x = 76,775,950,025.30/281,867.32
  6. Step 6: Final answer
    x = 272,383.30

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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.