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Finding the Fourth Proportional to 319,720.10, 479,580.03 and 95,079.62

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Solution

The fourth proportional to 319,720.10, 479,580.03 and 95,079.62 is: 142,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,720.10 : 479,580.03 = 95,079.62 : x
  2. Step 2: Convert to fraction form
    319,720.10/479,580.03 = 95,079.62/x
  3. Step 3: Cross multiply
    319,720.10x = 479,580.03 × 95,079.62
  4. Step 4: Simplify right side
    319,720.10x = 45,598,287,011.99
  5. Step 5: Solve for x
    x = 45,598,287,011.99/319,720.10
  6. Step 6: Final answer
    x = 142,619.39

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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.