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Finding the Fourth Proportional to 207,894.03, 286,938.27 and 131,364.54

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Solution

The fourth proportional to 207,894.03, 286,938.27 and 131,364.54 is: 181,311.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,894.03 : 286,938.27 = 131,364.54 : x
  2. Step 2: Convert to fraction form
    207,894.03/286,938.27 = 131,364.54/x
  3. Step 3: Cross multiply
    207,894.03x = 286,938.27 × 131,364.54
  4. Step 4: Simplify right side
    207,894.03x = 37,693,513,846.95
  5. Step 5: Solve for x
    x = 37,693,513,846.95/207,894.03
  6. Step 6: Final answer
    x = 181,311.19

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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.