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Finding the Fourth Proportional to 328,974.21, 453,980.43 and 185,740.29

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Solution

The fourth proportional to 328,974.21, 453,980.43 and 185,740.29 is: 256,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,974.21 : 453,980.43 = 185,740.29 : x
  2. Step 2: Convert to fraction form
    328,974.21/453,980.43 = 185,740.29/x
  3. Step 3: Cross multiply
    328,974.21x = 453,980.43 × 185,740.29
  4. Step 4: Simplify right side
    328,974.21x = 84,322,456,722.52
  5. Step 5: Solve for x
    x = 84,322,456,722.52/328,974.21
  6. Step 6: Final answer
    x = 256,319.35

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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.