Home / 319,860.24-479,531.10-133,011.60

Finding the Fourth Proportional to 319,860.24, 479,531.10 and 133,011.60

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Solution

The fourth proportional to 319,860.24, 479,531.10 and 133,011.60 is: 199,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,860.24 : 479,531.10 = 133,011.60 : x
  2. Step 2: Convert to fraction form
    319,860.24/479,531.10 = 133,011.60/x
  3. Step 3: Cross multiply
    319,860.24x = 479,531.10 × 133,011.60
  4. Step 4: Simplify right side
    319,860.24x = 63,783,198,860.76
  5. Step 5: Solve for x
    x = 63,783,198,860.76/319,860.24
  6. Step 6: Final answer
    x = 199,409.59

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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.