Home / 328,743.20-492,774.60-178,666.40

Finding the Fourth Proportional to 328,743.20, 492,774.60 and 178,666.40

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Solution

The fourth proportional to 328,743.20, 492,774.60 and 178,666.40 is: 267,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,743.20 : 492,774.60 = 178,666.40 : x
  2. Step 2: Convert to fraction form
    328,743.20/492,774.60 = 178,666.40/x
  3. Step 3: Cross multiply
    328,743.20x = 492,774.60 × 178,666.40
  4. Step 4: Simplify right side
    328,743.20x = 88,042,263,793.44
  5. Step 5: Solve for x
    x = 88,042,263,793.44/328,743.20
  6. Step 6: Final answer
    x = 267,814.71

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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.