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Finding the Fourth Proportional to 253,128.96, 379,505.97 and 153,265.68

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Solution

The fourth proportional to 253,128.96, 379,505.97 and 153,265.68 is: 229,785.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,128.96 : 379,505.97 = 153,265.68 : x
  2. Step 2: Convert to fraction form
    253,128.96/379,505.97 = 153,265.68/x
  3. Step 3: Cross multiply
    253,128.96x = 379,505.97 × 153,265.68
  4. Step 4: Simplify right side
    253,128.96x = 58,165,240,556.11
  5. Step 5: Solve for x
    x = 58,165,240,556.11/253,128.96
  6. Step 6: Final answer
    x = 229,785.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.