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Finding the Fourth Proportional to 201,640.60, 302,460.90 and 61,399.23

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Solution

The fourth proportional to 201,640.60, 302,460.90 and 61,399.23 is: 92,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,640.60 : 302,460.90 = 61,399.23 : x
  2. Step 2: Convert to fraction form
    201,640.60/302,460.90 = 61,399.23/x
  3. Step 3: Cross multiply
    201,640.60x = 302,460.90 × 61,399.23
  4. Step 4: Simplify right side
    201,640.60x = 18,570,866,365.11
  5. Step 5: Solve for x
    x = 18,570,866,365.11/201,640.60
  6. Step 6: Final answer
    x = 92,098.85

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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.