Home / 319,636.65-479,282.18-132,667.05

Finding the Fourth Proportional to 319,636.65, 479,282.18 and 132,667.05

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Solution

The fourth proportional to 319,636.65, 479,282.18 and 132,667.05 is: 198,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,636.65 : 479,282.18 = 132,667.05 : x
  2. Step 2: Convert to fraction form
    319,636.65/479,282.18 = 132,667.05/x
  3. Step 3: Cross multiply
    319,636.65x = 479,282.18 × 132,667.05
  4. Step 4: Simplify right side
    319,636.65x = 63,584,952,274.83
  5. Step 5: Solve for x
    x = 63,584,952,274.83/319,636.65
  6. Step 6: Final answer
    x = 198,928.85

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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.