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Finding the Fourth Proportional to 328,516.40, 492,774.60 and 227,039.60

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Solution

The fourth proportional to 328,516.40, 492,774.60 and 227,039.60 is: 340,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,516.40 : 492,774.60 = 227,039.60 : x
  2. Step 2: Convert to fraction form
    328,516.40/492,774.60 = 227,039.60/x
  3. Step 3: Cross multiply
    328,516.40x = 492,774.60 × 227,039.60
  4. Step 4: Simplify right side
    328,516.40x = 111,879,348,074.16
  5. Step 5: Solve for x
    x = 111,879,348,074.16/328,516.40
  6. Step 6: Final answer
    x = 340,559.40

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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.