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Finding the Fourth Proportional to 309,082.21, 426,504.77 and 174,946.21

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Solution

The fourth proportional to 309,082.21, 426,504.77 and 174,946.21 is: 241,409.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,082.21 : 426,504.77 = 174,946.21 : x
  2. Step 2: Convert to fraction form
    309,082.21/426,504.77 = 174,946.21/x
  3. Step 3: Cross multiply
    309,082.21x = 426,504.77 × 174,946.21
  4. Step 4: Simplify right side
    309,082.21x = 74,615,392,183.69
  5. Step 5: Solve for x
    x = 74,615,392,183.69/309,082.21
  6. Step 6: Final answer
    x = 241,409.53

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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.