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Finding the Fourth Proportional to 328,980.48, 453,993.60 and 178,078.08

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Solution

The fourth proportional to 328,980.48, 453,993.60 and 178,078.08 is: 245,748.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,980.48 : 453,993.60 = 178,078.08 : x
  2. Step 2: Convert to fraction form
    328,980.48/453,993.60 = 178,078.08/x
  3. Step 3: Cross multiply
    328,980.48x = 453,993.60 × 178,078.08
  4. Step 4: Simplify right side
    328,980.48x = 80,846,308,620.29
  5. Step 5: Solve for x
    x = 80,846,308,620.29/328,980.48
  6. Step 6: Final answer
    x = 245,748.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.