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Finding the Fourth Proportional to 203,489.55, 280,491.93 and 160,399.17

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Solution

The fourth proportional to 203,489.55, 280,491.93 and 160,399.17 is: 221,095.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,489.55 : 280,491.93 = 160,399.17 : x
  2. Step 2: Convert to fraction form
    203,489.55/280,491.93 = 160,399.17/x
  3. Step 3: Cross multiply
    203,489.55x = 280,491.93 × 160,399.17
  4. Step 4: Simplify right side
    203,489.55x = 44,990,672,763.70
  5. Step 5: Solve for x
    x = 44,990,672,763.70/203,489.55
  6. Step 6: Final answer
    x = 221,095.74

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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.