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Finding the Fourth Proportional to 216,419.45, 324,629.25 and 56,494.93

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Solution

The fourth proportional to 216,419.45, 324,629.25 and 56,494.93 is: 84,742.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,419.45 : 324,629.25 = 56,494.93 : x
  2. Step 2: Convert to fraction form
    216,419.45/324,629.25 = 56,494.93/x
  3. Step 3: Cross multiply
    216,419.45x = 324,629.25 × 56,494.93
  4. Step 4: Simplify right side
    216,419.45x = 18,339,907,707.51
  5. Step 5: Solve for x
    x = 18,339,907,707.51/216,419.45
  6. Step 6: Final answer
    x = 84,742.42

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1.5x scale

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.