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Finding the Fourth Proportional to 202,900.82, 280,092.82 and 121,257.89

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Solution

The fourth proportional to 202,900.82, 280,092.82 and 121,257.89 is: 167,389.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,900.82 : 280,092.82 = 121,257.89 : x
  2. Step 2: Convert to fraction form
    202,900.82/280,092.82 = 121,257.89/x
  3. Step 3: Cross multiply
    202,900.82x = 280,092.82 × 121,257.89
  4. Step 4: Simplify right side
    202,900.82x = 33,963,462,956.89
  5. Step 5: Solve for x
    x = 33,963,462,956.89/202,900.82
  6. Step 6: Final answer
    x = 167,389.48

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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.