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Finding the Fourth Proportional to 201,633.60, 302,104.80 and 131,476.80

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Solution

The fourth proportional to 201,633.60, 302,104.80 and 131,476.80 is: 196,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,633.60 : 302,104.80 = 131,476.80 : x
  2. Step 2: Convert to fraction form
    201,633.60/302,104.80 = 131,476.80/x
  3. Step 3: Cross multiply
    201,633.60x = 302,104.80 × 131,476.80
  4. Step 4: Simplify right side
    201,633.60x = 39,719,772,368.64
  5. Step 5: Solve for x
    x = 39,719,772,368.64/201,633.60
  6. Step 6: Final answer
    x = 196,989.85

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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.