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Finding the Fourth Proportional to 253,163.06, 349,453 and 145,775.89

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Solution

The fourth proportional to 253,163.06, 349,453 and 145,775.89 is: 201,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,163.06 : 349,453 = 145,775.89 : x
  2. Step 2: Convert to fraction form
    253,163.06/349,453 = 145,775.89/x
  3. Step 3: Cross multiply
    253,163.06x = 349,453 × 145,775.89
  4. Step 4: Simplify right side
    253,163.06x = 50,941,822,088.17
  5. Step 5: Solve for x
    x = 50,941,822,088.17/253,163.06
  6. Step 6: Final answer
    x = 201,221.39

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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.