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Finding the Fourth Proportional to 389,062.92, 536,906.83 and 210,214.92

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Solution

The fourth proportional to 389,062.92, 536,906.83 and 210,214.92 is: 290,096.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,062.92 : 536,906.83 = 210,214.92 : x
  2. Step 2: Convert to fraction form
    389,062.92/536,906.83 = 210,214.92/x
  3. Step 3: Cross multiply
    389,062.92x = 536,906.83 × 210,214.92
  4. Step 4: Simplify right side
    389,062.92x = 112,865,826,315.90
  5. Step 5: Solve for x
    x = 112,865,826,315.90/389,062.92
  6. Step 6: Final answer
    x = 290,096.59

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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.