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Finding the Fourth Proportional to 210,656.49, 315,937.95 and 60,864

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Solution

The fourth proportional to 210,656.49, 315,937.95 and 60,864 is: 91,282.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,656.49 : 315,937.95 = 60,864 : x
  2. Step 2: Convert to fraction form
    210,656.49/315,937.95 = 60,864/x
  3. Step 3: Cross multiply
    210,656.49x = 315,937.95 × 60,864
  4. Step 4: Simplify right side
    210,656.49x = 19,229,247,388.80
  5. Step 5: Solve for x
    x = 19,229,247,388.80/210,656.49
  6. Step 6: Final answer
    x = 91,282.48

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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.