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Finding the Fourth Proportional to 346,716.60, 520,074.90 and 323,388.60

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Solution

The fourth proportional to 346,716.60, 520,074.90 and 323,388.60 is: 485,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,716.60 : 520,074.90 = 323,388.60 : x
  2. Step 2: Convert to fraction form
    346,716.60/520,074.90 = 323,388.60/x
  3. Step 3: Cross multiply
    346,716.60x = 520,074.90 × 323,388.60
  4. Step 4: Simplify right side
    346,716.60x = 168,186,293,806.14
  5. Step 5: Solve for x
    x = 168,186,293,806.14/346,716.60
  6. Step 6: Final answer
    x = 485,082.90

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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.