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Finding the Fourth Proportional to 201,370.40, 302,099.52 and 61,140

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Solution

The fourth proportional to 201,370.40, 302,099.52 and 61,140 is: 91,723.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,370.40 : 302,099.52 = 61,140 : x
  2. Step 2: Convert to fraction form
    201,370.40/302,099.52 = 61,140/x
  3. Step 3: Cross multiply
    201,370.40x = 302,099.52 × 61,140
  4. Step 4: Simplify right side
    201,370.40x = 18,470,364,652.80
  5. Step 5: Solve for x
    x = 18,470,364,652.80/201,370.40
  6. Step 6: Final answer
    x = 91,723.33

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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.