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Finding the Fourth Proportional to 328,971.84, 453,980.64 and 178,069.44

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Solution

The fourth proportional to 328,971.84, 453,980.64 and 178,069.44 is: 245,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,971.84 : 453,980.64 = 178,069.44 : x
  2. Step 2: Convert to fraction form
    328,971.84/453,980.64 = 178,069.44/x
  3. Step 3: Cross multiply
    328,971.84x = 453,980.64 × 178,069.44
  4. Step 4: Simplify right side
    328,971.84x = 80,840,078,335.64
  5. Step 5: Solve for x
    x = 80,840,078,335.64/328,971.84
  6. Step 6: Final answer
    x = 245,735.56

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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.