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Finding the Fourth Proportional to 200,543.01, 300,852.51 and 80,609.31

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Solution

The fourth proportional to 200,543.01, 300,852.51 and 80,609.31 is: 120,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,543.01 : 300,852.51 = 80,609.31 : x
  2. Step 2: Convert to fraction form
    200,543.01/300,852.51 = 80,609.31/x
  3. Step 3: Cross multiply
    200,543.01x = 300,852.51 × 80,609.31
  4. Step 4: Simplify right side
    200,543.01x = 24,251,513,242.87
  5. Step 5: Solve for x
    x = 24,251,513,242.87/200,543.01
  6. Step 6: Final answer
    x = 120,929.24

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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.