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Finding the Fourth Proportional to 202,374.60, 303,318.90 and 139,194.60

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Solution

The fourth proportional to 202,374.60, 303,318.90 and 139,194.60 is: 208,624.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,374.60 : 303,318.90 = 139,194.60 : x
  2. Step 2: Convert to fraction form
    202,374.60/303,318.90 = 139,194.60/x
  3. Step 3: Cross multiply
    202,374.60x = 303,318.90 × 139,194.60
  4. Step 4: Simplify right side
    202,374.60x = 42,220,352,957.94
  5. Step 5: Solve for x
    x = 42,220,352,957.94/202,374.60
  6. Step 6: Final answer
    x = 208,624.76

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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.