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Finding the Fourth Proportional to 210,616, 315,975.84 and 62,872

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Solution

The fourth proportional to 210,616, 315,975.84 and 62,872 is: 94,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,616 : 315,975.84 = 62,872 : x
  2. Step 2: Convert to fraction form
    210,616/315,975.84 = 62,872/x
  3. Step 3: Cross multiply
    210,616x = 315,975.84 × 62,872
  4. Step 4: Simplify right side
    210,616x = 19,866,033,012.48
  5. Step 5: Solve for x
    x = 19,866,033,012.48/210,616
  6. Step 6: Final answer
    x = 94,323.48

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.