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Finding the Fourth Proportional to 201,010.20, 301,515.30 and 122,148.60

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Solution

The fourth proportional to 201,010.20, 301,515.30 and 122,148.60 is: 183,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,010.20 : 301,515.30 = 122,148.60 : x
  2. Step 2: Convert to fraction form
    201,010.20/301,515.30 = 122,148.60/x
  3. Step 3: Cross multiply
    201,010.20x = 301,515.30 × 122,148.60
  4. Step 4: Simplify right side
    201,010.20x = 36,829,671,773.58
  5. Step 5: Solve for x
    x = 36,829,671,773.58/201,010.20
  6. Step 6: Final answer
    x = 183,222.90

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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.