Home / 319,526.54-479,355.42-129,986.43

Finding the Fourth Proportional to 319,526.54, 479,355.42 and 129,986.43

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Solution

The fourth proportional to 319,526.54, 479,355.42 and 129,986.43 is: 195,006.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,526.54 : 479,355.42 = 129,986.43 : x
  2. Step 2: Convert to fraction form
    319,526.54/479,355.42 = 129,986.43/x
  3. Step 3: Cross multiply
    319,526.54x = 479,355.42 × 129,986.43
  4. Step 4: Simplify right side
    319,526.54x = 62,309,700,234.40
  5. Step 5: Solve for x
    x = 62,309,700,234.40/319,526.54
  6. Step 6: Final answer
    x = 195,006.34

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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.