Home / 309,393.28-464,090.33-84,755.69

Finding the Fourth Proportional to 309,393.28, 464,090.33 and 84,755.69

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Solution

The fourth proportional to 309,393.28, 464,090.33 and 84,755.69 is: 127,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,393.28 : 464,090.33 = 84,755.69 : x
  2. Step 2: Convert to fraction form
    309,393.28/464,090.33 = 84,755.69/x
  3. Step 3: Cross multiply
    309,393.28x = 464,090.33 × 84,755.69
  4. Step 4: Simplify right side
    309,393.28x = 39,334,296,141.48
  5. Step 5: Solve for x
    x = 39,334,296,141.48/309,393.28
  6. Step 6: Final answer
    x = 127,133.65

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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.