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Finding the Fourth Proportional to 328,833.60, 492,715.80 and 297,340.80

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Solution

The fourth proportional to 328,833.60, 492,715.80 and 297,340.80 is: 445,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,833.60 : 492,715.80 = 297,340.80 : x
  2. Step 2: Convert to fraction form
    328,833.60/492,715.80 = 297,340.80/x
  3. Step 3: Cross multiply
    328,833.60x = 492,715.80 × 297,340.80
  4. Step 4: Simplify right side
    328,833.60x = 146,504,510,144.64
  5. Step 5: Solve for x
    x = 146,504,510,144.64/328,833.60
  6. Step 6: Final answer
    x = 445,527.80

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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.