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Finding the Fourth Proportional to 203,495.55, 280,500.21 and 160,405.17

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Solution

The fourth proportional to 203,495.55, 280,500.21 and 160,405.17 is: 221,104.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,495.55 : 280,500.21 = 160,405.17 : x
  2. Step 2: Convert to fraction form
    203,495.55/280,500.21 = 160,405.17/x
  3. Step 3: Cross multiply
    203,495.55x = 280,500.21 × 160,405.17
  4. Step 4: Simplify right side
    203,495.55x = 44,993,683,870.09
  5. Step 5: Solve for x
    x = 44,993,683,870.09/203,495.55
  6. Step 6: Final answer
    x = 221,104.02

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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.