Home / 309,864.49-464,993.34-132,372.79

Finding the Fourth Proportional to 309,864.49, 464,993.34 and 132,372.79

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Solution

The fourth proportional to 309,864.49, 464,993.34 and 132,372.79 is: 198,643.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,864.49 : 464,993.34 = 132,372.79 : x
  2. Step 2: Convert to fraction form
    309,864.49/464,993.34 = 132,372.79/x
  3. Step 3: Cross multiply
    309,864.49x = 464,993.34 × 132,372.79
  4. Step 4: Simplify right side
    309,864.49x = 61,552,465,747.22
  5. Step 5: Solve for x
    x = 61,552,465,747.22/309,864.49
  6. Step 6: Final answer
    x = 198,643.17

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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.