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Finding the Fourth Proportional to 202,875.48, 279,976.41 and 112,229.89

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Solution

The fourth proportional to 202,875.48, 279,976.41 and 112,229.89 is: 154,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,875.48 : 279,976.41 = 112,229.89 : x
  2. Step 2: Convert to fraction form
    202,875.48/279,976.41 = 112,229.89/x
  3. Step 3: Cross multiply
    202,875.48x = 279,976.41 × 112,229.89
  4. Step 4: Simplify right side
    202,875.48x = 31,421,720,297.01
  5. Step 5: Solve for x
    x = 31,421,720,297.01/202,875.48
  6. Step 6: Final answer
    x = 154,881.80

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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.