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Finding the Fourth Proportional to 207,165.60, 310,748.40 and 171,736.20

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Solution

The fourth proportional to 207,165.60, 310,748.40 and 171,736.20 is: 257,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,165.60 : 310,748.40 = 171,736.20 : x
  2. Step 2: Convert to fraction form
    207,165.60/310,748.40 = 171,736.20/x
  3. Step 3: Cross multiply
    207,165.60x = 310,748.40 × 171,736.20
  4. Step 4: Simplify right side
    207,165.60x = 53,366,749,372.08
  5. Step 5: Solve for x
    x = 53,366,749,372.08/207,165.60
  6. Step 6: Final answer
    x = 257,604.30

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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.