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Finding the Fourth Proportional to 328,994.64, 453,987.72 and 185,734.80

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Solution

The fourth proportional to 328,994.64, 453,987.72 and 185,734.80 is: 256,299.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,994.64 : 453,987.72 = 185,734.80 : x
  2. Step 2: Convert to fraction form
    328,994.64/453,987.72 = 185,734.80/x
  3. Step 3: Cross multiply
    328,994.64x = 453,987.72 × 185,734.80
  4. Step 4: Simplify right side
    328,994.64x = 84,321,318,376.66
  5. Step 5: Solve for x
    x = 84,321,318,376.66/328,994.64
  6. Step 6: Final answer
    x = 256,299.98

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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.