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Finding the Fourth Proportional to 331,495.60, 497,097.60 and 131,749.60

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Solution

The fourth proportional to 331,495.60, 497,097.60 and 131,749.60 is: 197,566.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,495.60 : 497,097.60 = 131,749.60 : x
  2. Step 2: Convert to fraction form
    331,495.60/497,097.60 = 131,749.60/x
  3. Step 3: Cross multiply
    331,495.60x = 497,097.60 × 131,749.60
  4. Step 4: Simplify right side
    331,495.60x = 65,492,409,960.96
  5. Step 5: Solve for x
    x = 65,492,409,960.96/331,495.60
  6. Step 6: Final answer
    x = 197,566.45

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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.