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Finding the Fourth Proportional to 270,155.94, 404,871.68 and 210,256.76

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Solution

The fourth proportional to 270,155.94, 404,871.68 and 210,256.76 is: 315,103.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,155.94 : 404,871.68 = 210,256.76 : x
  2. Step 2: Convert to fraction form
    270,155.94/404,871.68 = 210,256.76/x
  3. Step 3: Cross multiply
    270,155.94x = 404,871.68 × 210,256.76
  4. Step 4: Simplify right side
    270,155.94x = 85,127,007,652.56
  5. Step 5: Solve for x
    x = 85,127,007,652.56/270,155.94
  6. Step 6: Final answer
    x = 315,103.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.