Home / 319,721.62-479,478.59-106,432.24

Finding the Fourth Proportional to 319,721.62, 479,478.59 and 106,432.24

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Solution

The fourth proportional to 319,721.62, 479,478.59 and 106,432.24 is: 159,613.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,721.62 : 479,478.59 = 106,432.24 : x
  2. Step 2: Convert to fraction form
    319,721.62/479,478.59 = 106,432.24/x
  3. Step 3: Cross multiply
    319,721.62x = 479,478.59 × 106,432.24
  4. Step 4: Simplify right side
    319,721.62x = 51,031,977,968.35
  5. Step 5: Solve for x
    x = 51,031,977,968.35/319,721.62
  6. Step 6: Final answer
    x = 159,613.79

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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.