Home / 288,217.92-397,734.12-160,905.36

Finding the Fourth Proportional to 288,217.92, 397,734.12 and 160,905.36

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Solution

The fourth proportional to 288,217.92, 397,734.12 and 160,905.36 is: 222,045.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,217.92 : 397,734.12 = 160,905.36 : x
  2. Step 2: Convert to fraction form
    288,217.92/397,734.12 = 160,905.36/x
  3. Step 3: Cross multiply
    288,217.92x = 397,734.12 × 160,905.36
  4. Step 4: Simplify right side
    288,217.92x = 63,997,551,762.88
  5. Step 5: Solve for x
    x = 63,997,551,762.88/288,217.92
  6. Step 6: Final answer
    x = 222,045.71

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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.