Home / 288,319.20-397,881.36-160,999.44

Finding the Fourth Proportional to 288,319.20, 397,881.36 and 160,999.44

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Solution

The fourth proportional to 288,319.20, 397,881.36 and 160,999.44 is: 222,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,319.20 : 397,881.36 = 160,999.44 : x
  2. Step 2: Convert to fraction form
    288,319.20/397,881.36 = 160,999.44/x
  3. Step 3: Cross multiply
    288,319.20x = 397,881.36 × 160,999.44
  4. Step 4: Simplify right side
    288,319.20x = 64,058,676,146.44
  5. Step 5: Solve for x
    x = 64,058,676,146.44/288,319.20
  6. Step 6: Final answer
    x = 222,179.71

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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.