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Finding the Fourth Proportional to 362,259.45, 543,391.02 and 212,394.63

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Solution

The fourth proportional to 362,259.45, 543,391.02 and 212,394.63 is: 318,593.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,259.45 : 543,391.02 = 212,394.63 : x
  2. Step 2: Convert to fraction form
    362,259.45/543,391.02 = 212,394.63/x
  3. Step 3: Cross multiply
    362,259.45x = 543,391.02 × 212,394.63
  4. Step 4: Simplify right side
    362,259.45x = 115,413,334,638.22
  5. Step 5: Solve for x
    x = 115,413,334,638.22/362,259.45
  6. Step 6: Final answer
    x = 318,593.03

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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.