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Finding the Fourth Proportional to 309,093.60, 463,294.80 and 131,570.40

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Solution

The fourth proportional to 309,093.60, 463,294.80 and 131,570.40 is: 197,208.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,093.60 : 463,294.80 = 131,570.40 : x
  2. Step 2: Convert to fraction form
    309,093.60/463,294.80 = 131,570.40/x
  3. Step 3: Cross multiply
    309,093.60x = 463,294.80 × 131,570.40
  4. Step 4: Simplify right side
    309,093.60x = 60,955,882,153.92
  5. Step 5: Solve for x
    x = 60,955,882,153.92/309,093.60
  6. Step 6: Final answer
    x = 197,208.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.