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Finding the Fourth Proportional to 201,709.60, 302,564.40 and 83,611.60

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Solution

The fourth proportional to 201,709.60, 302,564.40 and 83,611.60 is: 125,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,709.60 : 302,564.40 = 83,611.60 : x
  2. Step 2: Convert to fraction form
    201,709.60/302,564.40 = 83,611.60/x
  3. Step 3: Cross multiply
    201,709.60x = 302,564.40 × 83,611.60
  4. Step 4: Simplify right side
    201,709.60x = 25,297,893,587.04
  5. Step 5: Solve for x
    x = 25,297,893,587.04/201,709.60
  6. Step 6: Final answer
    x = 125,417.40

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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.