Home / 319,829.94-479,568.42-130,241.70

Finding the Fourth Proportional to 319,829.94, 479,568.42 and 130,241.70

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Solution

The fourth proportional to 319,829.94, 479,568.42 and 130,241.70 is: 195,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,829.94 : 479,568.42 = 130,241.70 : x
  2. Step 2: Convert to fraction form
    319,829.94/479,568.42 = 130,241.70/x
  3. Step 3: Cross multiply
    319,829.94x = 479,568.42 × 130,241.70
  4. Step 4: Simplify right side
    319,829.94x = 62,459,806,287.11
  5. Step 5: Solve for x
    x = 62,459,806,287.11/319,829.94
  6. Step 6: Final answer
    x = 195,290.68

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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.