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Finding the Fourth Proportional to 202,038.31, 303,057.47 and 112,136.21

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Solution

The fourth proportional to 202,038.31, 303,057.47 and 112,136.21 is: 168,204.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,038.31 : 303,057.47 = 112,136.21 : x
  2. Step 2: Convert to fraction form
    202,038.31/303,057.47 = 112,136.21/x
  3. Step 3: Cross multiply
    202,038.31x = 303,057.47 × 112,136.21
  4. Step 4: Simplify right side
    202,038.31x = 33,983,716,097.99
  5. Step 5: Solve for x
    x = 33,983,716,097.99/202,038.31
  6. Step 6: Final answer
    x = 168,204.32

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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.