Home / 288,341.09-397,921.96-159,286.22

Finding the Fourth Proportional to 288,341.09, 397,921.96 and 159,286.22

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Solution

The fourth proportional to 288,341.09, 397,921.96 and 159,286.22 is: 219,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,341.09 : 397,921.96 = 159,286.22 : x
  2. Step 2: Convert to fraction form
    288,341.09/397,921.96 = 159,286.22/x
  3. Step 3: Cross multiply
    288,341.09x = 397,921.96 × 159,286.22
  4. Step 4: Simplify right side
    288,341.09x = 63,383,484,863.39
  5. Step 5: Solve for x
    x = 63,383,484,863.39/288,341.09
  6. Step 6: Final answer
    x = 219,821.20

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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.