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Finding the Fourth Proportional to 353,755.71, 488,186.24 and 202,823.55

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Solution

The fourth proportional to 353,755.71, 488,186.24 and 202,823.55 is: 279,898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,755.71 : 488,186.24 = 202,823.55 : x
  2. Step 2: Convert to fraction form
    353,755.71/488,186.24 = 202,823.55/x
  3. Step 3: Cross multiply
    353,755.71x = 488,186.24 × 202,823.55
  4. Step 4: Simplify right side
    353,755.71x = 99,015,665,243.83
  5. Step 5: Solve for x
    x = 99,015,665,243.83/353,755.71
  6. Step 6: Final answer
    x = 279,898.42

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1.5x scale

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.