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Finding the Fourth Proportional to 319,809.36, 479,670.32 and 95,204.48

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Solution

The fourth proportional to 319,809.36, 479,670.32 and 95,204.48 is: 142,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,809.36 : 479,670.32 = 95,204.48 : x
  2. Step 2: Convert to fraction form
    319,809.36/479,670.32 = 95,204.48/x
  3. Step 3: Cross multiply
    319,809.36x = 479,670.32 × 95,204.48
  4. Step 4: Simplify right side
    319,809.36x = 45,666,763,387.03
  5. Step 5: Solve for x
    x = 45,666,763,387.03/319,809.36
  6. Step 6: Final answer
    x = 142,793.70

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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.