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Finding the Fourth Proportional to 203,490.02, 280,830.60 and 112,854.65

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Solution

The fourth proportional to 203,490.02, 280,830.60 and 112,854.65 is: 155,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,490.02 : 280,830.60 = 112,854.65 : x
  2. Step 2: Convert to fraction form
    203,490.02/280,830.60 = 112,854.65/x
  3. Step 3: Cross multiply
    203,490.02x = 280,830.60 × 112,854.65
  4. Step 4: Simplify right side
    203,490.02x = 31,693,039,072.29
  5. Step 5: Solve for x
    x = 31,693,039,072.29/203,490.02
  6. Step 6: Final answer
    x = 155,747.39

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