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Finding the Fourth Proportional to 333,128.92, 499,701.48 and 130,716.40

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Solution

The fourth proportional to 333,128.92, 499,701.48 and 130,716.40 is: 196,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,128.92 : 499,701.48 = 130,716.40 : x
  2. Step 2: Convert to fraction form
    333,128.92/499,701.48 = 130,716.40/x
  3. Step 3: Cross multiply
    333,128.92x = 499,701.48 × 130,716.40
  4. Step 4: Simplify right side
    333,128.92x = 65,319,178,540.27
  5. Step 5: Solve for x
    x = 65,319,178,540.27/333,128.92
  6. Step 6: Final answer
    x = 196,077.78

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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.