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Finding the Fourth Proportional to 201,276.90, 301,915.35 and 126,627.30

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Solution

The fourth proportional to 201,276.90, 301,915.35 and 126,627.30 is: 189,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,276.90 : 301,915.35 = 126,627.30 : x
  2. Step 2: Convert to fraction form
    201,276.90/301,915.35 = 126,627.30/x
  3. Step 3: Cross multiply
    201,276.90x = 301,915.35 × 126,627.30
  4. Step 4: Simplify right side
    201,276.90x = 38,230,725,599.06
  5. Step 5: Solve for x
    x = 38,230,725,599.06/201,276.90
  6. Step 6: Final answer
    x = 189,940.95

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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.