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Finding the Fourth Proportional to 319,711, 479,660.48 and 95,073.16

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Solution

The fourth proportional to 319,711, 479,660.48 and 95,073.16 is: 142,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,711 : 479,660.48 = 95,073.16 : x
  2. Step 2: Convert to fraction form
    319,711/479,660.48 = 95,073.16/x
  3. Step 3: Cross multiply
    319,711x = 479,660.48 × 95,073.16
  4. Step 4: Simplify right side
    319,711x = 45,602,837,560.72
  5. Step 5: Solve for x
    x = 45,602,837,560.72/319,711
  6. Step 6: Final answer
    x = 142,637.69

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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.