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Finding the Fourth Proportional to 201,820.60, 302,706.60 and 83,479.60

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Solution

The fourth proportional to 201,820.60, 302,706.60 and 83,479.60 is: 125,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,820.60 : 302,706.60 = 83,479.60 : x
  2. Step 2: Convert to fraction form
    201,820.60/302,706.60 = 83,479.60/x
  3. Step 3: Cross multiply
    201,820.60x = 302,706.60 × 83,479.60
  4. Step 4: Simplify right side
    201,820.60x = 25,269,825,885.36
  5. Step 5: Solve for x
    x = 25,269,825,885.36/201,820.60
  6. Step 6: Final answer
    x = 125,209.35

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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.