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Finding the Fourth Proportional to 288,003.66, 397,445.30 and 160,679.29

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Solution

The fourth proportional to 288,003.66, 397,445.30 and 160,679.29 is: 221,737.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,003.66 : 397,445.30 = 160,679.29 : x
  2. Step 2: Convert to fraction form
    288,003.66/397,445.30 = 160,679.29/x
  3. Step 3: Cross multiply
    288,003.66x = 397,445.30 × 160,679.29
  4. Step 4: Simplify right side
    288,003.66x = 63,861,228,617.84
  5. Step 5: Solve for x
    x = 63,861,228,617.84/288,003.66
  6. Step 6: Final answer
    x = 221,737.56

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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.