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Finding the Fourth Proportional to 236,881, 326,895.78 and 130,897

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Solution

The fourth proportional to 236,881, 326,895.78 and 130,897 is: 180,637.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,881 : 326,895.78 = 130,897 : x
  2. Step 2: Convert to fraction form
    236,881/326,895.78 = 130,897/x
  3. Step 3: Cross multiply
    236,881x = 326,895.78 × 130,897
  4. Step 4: Simplify right side
    236,881x = 42,789,676,914.66
  5. Step 5: Solve for x
    x = 42,789,676,914.66/236,881
  6. Step 6: Final answer
    x = 180,637.86

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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.