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Finding the Fourth Proportional to 216,686.66, 325,074.32 and 74,513.48

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Solution

The fourth proportional to 216,686.66, 325,074.32 and 74,513.48 is: 111,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,686.66 : 325,074.32 = 74,513.48 : x
  2. Step 2: Convert to fraction form
    216,686.66/325,074.32 = 74,513.48/x
  3. Step 3: Cross multiply
    216,686.66x = 325,074.32 × 74,513.48
  4. Step 4: Simplify right side
    216,686.66x = 24,222,417,402.75
  5. Step 5: Solve for x
    x = 24,222,417,402.75/216,686.66
  6. Step 6: Final answer
    x = 111,785.46

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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.