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Finding the Fourth Proportional to 346,956.56, 520,080.36 and 196,880

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Solution

The fourth proportional to 346,956.56, 520,080.36 and 196,880 is: 295,118.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,956.56 : 520,080.36 = 196,880 : x
  2. Step 2: Convert to fraction form
    346,956.56/520,080.36 = 196,880/x
  3. Step 3: Cross multiply
    346,956.56x = 520,080.36 × 196,880
  4. Step 4: Simplify right side
    346,956.56x = 102,393,421,276.80
  5. Step 5: Solve for x
    x = 102,393,421,276.80/346,956.56
  6. Step 6: Final answer
    x = 295,118.85

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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.