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Finding the Fourth Proportional to 202,069.40, 303,432.15 and 135,803.30

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Solution

The fourth proportional to 202,069.40, 303,432.15 and 135,803.30 is: 203,925.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,069.40 : 303,432.15 = 135,803.30 : x
  2. Step 2: Convert to fraction form
    202,069.40/303,432.15 = 135,803.30/x
  3. Step 3: Cross multiply
    202,069.40x = 303,432.15 × 135,803.30
  4. Step 4: Simplify right side
    202,069.40x = 41,207,087,296.10
  5. Step 5: Solve for x
    x = 41,207,087,296.10/202,069.40
  6. Step 6: Final answer
    x = 203,925.42

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