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Finding the Fourth Proportional to 319,873.62, 479,782.44 and 130,353.87

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Solution

The fourth proportional to 319,873.62, 479,782.44 and 130,353.87 is: 195,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,873.62 : 479,782.44 = 130,353.87 : x
  2. Step 2: Convert to fraction form
    319,873.62/479,782.44 = 130,353.87/x
  3. Step 3: Cross multiply
    319,873.62x = 479,782.44 × 130,353.87
  4. Step 4: Simplify right side
    319,873.62x = 62,541,497,812.04
  5. Step 5: Solve for x
    x = 62,541,497,812.04/319,873.62
  6. Step 6: Final answer
    x = 195,519.40

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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.