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Finding the Fourth Proportional to 328,977.60, 492,810.30 and 171,294.90

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Solution

The fourth proportional to 328,977.60, 492,810.30 and 171,294.90 is: 256,600.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,977.60 : 492,810.30 = 171,294.90 : x
  2. Step 2: Convert to fraction form
    328,977.60/492,810.30 = 171,294.90/x
  3. Step 3: Cross multiply
    328,977.60x = 492,810.30 × 171,294.90
  4. Step 4: Simplify right side
    328,977.60x = 84,415,891,057.47
  5. Step 5: Solve for x
    x = 84,415,891,057.47/328,977.60
  6. Step 6: Final answer
    x = 256,600.73

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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.