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Finding the Fourth Proportional to 384,893.01, 531,168.57 and 215,127

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Solution

The fourth proportional to 384,893.01, 531,168.57 and 215,127 is: 296,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,893.01 : 531,168.57 = 215,127 : x
  2. Step 2: Convert to fraction form
    384,893.01/531,168.57 = 215,127/x
  3. Step 3: Cross multiply
    384,893.01x = 531,168.57 × 215,127
  4. Step 4: Simplify right side
    384,893.01x = 114,268,700,958.39
  5. Step 5: Solve for x
    x = 114,268,700,958.39/384,893.01
  6. Step 6: Final answer
    x = 296,884.32

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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.