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Finding the Fourth Proportional to 253,299.71, 349,553.68 and 145,867.43

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Solution

The fourth proportional to 253,299.71, 349,553.68 and 145,867.43 is: 201,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,299.71 : 349,553.68 = 145,867.43 : x
  2. Step 2: Convert to fraction form
    253,299.71/349,553.68 = 145,867.43/x
  3. Step 3: Cross multiply
    253,299.71x = 349,553.68 × 145,867.43
  4. Step 4: Simplify right side
    253,299.71x = 50,988,497,457.86
  5. Step 5: Solve for x
    x = 50,988,497,457.86/253,299.71
  6. Step 6: Final answer
    x = 201,297.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.