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Finding the Fourth Proportional to 328,267.20, 492,789.60 and 186,225.60

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Solution

The fourth proportional to 328,267.20, 492,789.60 and 186,225.60 is: 279,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,267.20 : 492,789.60 = 186,225.60 : x
  2. Step 2: Convert to fraction form
    328,267.20/492,789.60 = 186,225.60/x
  3. Step 3: Cross multiply
    328,267.20x = 492,789.60 × 186,225.60
  4. Step 4: Simplify right side
    328,267.20x = 91,770,038,933.76
  5. Step 5: Solve for x
    x = 91,770,038,933.76/328,267.20
  6. Step 6: Final answer
    x = 279,558.97

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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.