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Finding the Fourth Proportional to 183,458.81, 253,065.66 and 115,367.78

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Solution

The fourth proportional to 183,458.81, 253,065.66 and 115,367.78 is: 159,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,458.81 : 253,065.66 = 115,367.78 : x
  2. Step 2: Convert to fraction form
    183,458.81/253,065.66 = 115,367.78/x
  3. Step 3: Cross multiply
    183,458.81x = 253,065.66 × 115,367.78
  4. Step 4: Simplify right side
    183,458.81x = 29,195,623,388.43
  5. Step 5: Solve for x
    x = 29,195,623,388.43/183,458.81
  6. Step 6: Final answer
    x = 159,139.94

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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.