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Finding the Fourth Proportional to 379,485.90, 569,884.95 and 202,338.90

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Solution

The fourth proportional to 379,485.90, 569,884.95 and 202,338.90 is: 303,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,485.90 : 569,884.95 = 202,338.90 : x
  2. Step 2: Convert to fraction form
    379,485.90/569,884.95 = 202,338.90/x
  3. Step 3: Cross multiply
    379,485.90x = 569,884.95 × 202,338.90
  4. Step 4: Simplify right side
    379,485.90x = 115,309,893,909.56
  5. Step 5: Solve for x
    x = 115,309,893,909.56/379,485.90
  6. Step 6: Final answer
    x = 303,858.18

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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.