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Finding the Fourth Proportional to 183,980.40, 275,387.40 and 131,492.40

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Solution

The fourth proportional to 183,980.40, 275,387.40 and 131,492.40 is: 196,821.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,980.40 : 275,387.40 = 131,492.40 : x
  2. Step 2: Convert to fraction form
    183,980.40/275,387.40 = 131,492.40/x
  3. Step 3: Cross multiply
    183,980.40x = 275,387.40 × 131,492.40
  4. Step 4: Simplify right side
    183,980.40x = 36,211,350,155.76
  5. Step 5: Solve for x
    x = 36,211,350,155.76/183,980.40
  6. Step 6: Final answer
    x = 196,821.78

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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.