Home / 200,780.31-301,168.85-51,021.03

Finding the Fourth Proportional to 200,780.31, 301,168.85 and 51,021.03

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Solution

The fourth proportional to 200,780.31, 301,168.85 and 51,021.03 is: 76,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,780.31 : 301,168.85 = 51,021.03 : x
  2. Step 2: Convert to fraction form
    200,780.31/301,168.85 = 51,021.03/x
  3. Step 3: Cross multiply
    200,780.31x = 301,168.85 × 51,021.03
  4. Step 4: Simplify right side
    200,780.31x = 15,365,944,675.81
  5. Step 5: Solve for x
    x = 15,365,944,675.81/200,780.31
  6. Step 6: Final answer
    x = 76,531.13

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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.