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Finding the Fourth Proportional to 384,896.03, 531,135.08 and 212,804.04

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Solution

The fourth proportional to 384,896.03, 531,135.08 and 212,804.04 is: 293,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,896.03 : 531,135.08 = 212,804.04 : x
  2. Step 2: Convert to fraction form
    384,896.03/531,135.08 = 212,804.04/x
  3. Step 3: Cross multiply
    384,896.03x = 531,135.08 × 212,804.04
  4. Step 4: Simplify right side
    384,896.03x = 113,027,690,809.72
  5. Step 5: Solve for x
    x = 113,027,690,809.72/384,896.03
  6. Step 6: Final answer
    x = 293,657.72

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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.