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Finding the Fourth Proportional to 259,211, 388,816.50 and 62,219

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Solution

The fourth proportional to 259,211, 388,816.50 and 62,219 is: 93,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,211 : 388,816.50 = 62,219 : x
  2. Step 2: Convert to fraction form
    259,211/388,816.50 = 62,219/x
  3. Step 3: Cross multiply
    259,211x = 388,816.50 × 62,219
  4. Step 4: Simplify right side
    259,211x = 24,191,773,813.50
  5. Step 5: Solve for x
    x = 24,191,773,813.50/259,211
  6. Step 6: Final answer
    x = 93,328.50

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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.