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Finding the Fourth Proportional to 328,611.60, 492,917.40 and 223,635.60

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Solution

The fourth proportional to 328,611.60, 492,917.40 and 223,635.60 is: 335,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,611.60 : 492,917.40 = 223,635.60 : x
  2. Step 2: Convert to fraction form
    328,611.60/492,917.40 = 223,635.60/x
  3. Step 3: Cross multiply
    328,611.60x = 492,917.40 × 223,635.60
  4. Step 4: Simplify right side
    328,611.60x = 110,233,878,499.44
  5. Step 5: Solve for x
    x = 110,233,878,499.44/328,611.60
  6. Step 6: Final answer
    x = 335,453.40

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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.