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Finding the Fourth Proportional to 202,137.70, 303,012.15 and 157,134.10

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Solution

The fourth proportional to 202,137.70, 303,012.15 and 157,134.10 is: 235,550.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,137.70 : 303,012.15 = 157,134.10 : x
  2. Step 2: Convert to fraction form
    202,137.70/303,012.15 = 157,134.10/x
  3. Step 3: Cross multiply
    202,137.70x = 303,012.15 × 157,134.10
  4. Step 4: Simplify right side
    202,137.70x = 47,613,541,479.32
  5. Step 5: Solve for x
    x = 47,613,541,479.32/202,137.70
  6. Step 6: Final answer
    x = 235,550.03

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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.