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Finding the Fourth Proportional to 201,639.79, 302,284.73 and 101,716.57

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Solution

The fourth proportional to 201,639.79, 302,284.73 and 101,716.57 is: 152,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,639.79 : 302,284.73 = 101,716.57 : x
  2. Step 2: Convert to fraction form
    201,639.79/302,284.73 = 101,716.57/x
  3. Step 3: Cross multiply
    201,639.79x = 302,284.73 × 101,716.57
  4. Step 4: Simplify right side
    201,639.79x = 30,747,365,390.39
  5. Step 5: Solve for x
    x = 30,747,365,390.39/201,639.79
  6. Step 6: Final answer
    x = 152,486.60

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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.