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Finding the Fourth Proportional to 216,052, 324,061.68 and 75,820

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Solution

The fourth proportional to 216,052, 324,061.68 and 75,820 is: 113,724.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,052 : 324,061.68 = 75,820 : x
  2. Step 2: Convert to fraction form
    216,052/324,061.68 = 75,820/x
  3. Step 3: Cross multiply
    216,052x = 324,061.68 × 75,820
  4. Step 4: Simplify right side
    216,052x = 24,570,356,577.60
  5. Step 5: Solve for x
    x = 24,570,356,577.60/216,052
  6. Step 6: Final answer
    x = 113,724.27

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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.