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Finding the Fourth Proportional to 201,492.20, 301,979.10 and 122,522.60

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Solution

The fourth proportional to 201,492.20, 301,979.10 and 122,522.60 is: 183,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,492.20 : 301,979.10 = 122,522.60 : x
  2. Step 2: Convert to fraction form
    201,492.20/301,979.10 = 122,522.60/x
  3. Step 3: Cross multiply
    201,492.20x = 301,979.10 × 122,522.60
  4. Step 4: Simplify right side
    201,492.20x = 36,999,264,477.66
  5. Step 5: Solve for x
    x = 36,999,264,477.66/201,492.20
  6. Step 6: Final answer
    x = 183,626.29

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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.