Home / 319,724.40-479,256.12-119,903.88

Finding the Fourth Proportional to 319,724.40, 479,256.12 and 119,903.88

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Solution

The fourth proportional to 319,724.40, 479,256.12 and 119,903.88 is: 179,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,724.40 : 479,256.12 = 119,903.88 : x
  2. Step 2: Convert to fraction form
    319,724.40/479,256.12 = 119,903.88/x
  3. Step 3: Cross multiply
    319,724.40x = 479,256.12 × 119,903.88
  4. Step 4: Simplify right side
    319,724.40x = 57,464,668,301.75
  5. Step 5: Solve for x
    x = 57,464,668,301.75/319,724.40
  6. Step 6: Final answer
    x = 179,731.88

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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.