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Finding the Fourth Proportional to 309,081.96, 426,504.42 and 174,945.96

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Solution

The fourth proportional to 309,081.96, 426,504.42 and 174,945.96 is: 241,409.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,081.96 : 426,504.42 = 174,945.96 : x
  2. Step 2: Convert to fraction form
    309,081.96/426,504.42 = 174,945.96/x
  3. Step 3: Cross multiply
    309,081.96x = 426,504.42 × 174,945.96
  4. Step 4: Simplify right side
    309,081.96x = 74,615,225,201.14
  5. Step 5: Solve for x
    x = 74,615,225,201.14/309,081.96
  6. Step 6: Final answer
    x = 241,409.19

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1.5x scale

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.