Home / 319,399.52-440,313.28-251,299.04

Finding the Fourth Proportional to 319,399.52, 440,313.28 and 251,299.04

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Solution

The fourth proportional to 319,399.52, 440,313.28 and 251,299.04 is: 346,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,399.52 : 440,313.28 = 251,299.04 : x
  2. Step 2: Convert to fraction form
    319,399.52/440,313.28 = 251,299.04/x
  3. Step 3: Cross multiply
    319,399.52x = 440,313.28 × 251,299.04
  4. Step 4: Simplify right side
    319,399.52x = 110,650,304,563.25
  5. Step 5: Solve for x
    x = 110,650,304,563.25/319,399.52
  6. Step 6: Final answer
    x = 346,432.28

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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.