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Finding the Fourth Proportional to 203,500.60, 305,246.10 and 55,756.60

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Solution

The fourth proportional to 203,500.60, 305,246.10 and 55,756.60 is: 83,633.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,500.60 : 305,246.10 = 55,756.60 : x
  2. Step 2: Convert to fraction form
    203,500.60/305,246.10 = 55,756.60/x
  3. Step 3: Cross multiply
    203,500.60x = 305,246.10 × 55,756.60
  4. Step 4: Simplify right side
    203,500.60x = 17,019,484,699.26
  5. Step 5: Solve for x
    x = 17,019,484,699.26/203,500.60
  6. Step 6: Final answer
    x = 83,633.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.