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Finding the Fourth Proportional to 321,671.56, 443,927.08 and 185,730.60

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Solution

The fourth proportional to 321,671.56, 443,927.08 and 185,730.60 is: 256,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,671.56 : 443,927.08 = 185,730.60 : x
  2. Step 2: Convert to fraction form
    321,671.56/443,927.08 = 185,730.60/x
  3. Step 3: Cross multiply
    321,671.56x = 443,927.08 × 185,730.60
  4. Step 4: Simplify right side
    321,671.56x = 82,450,842,924.65
  5. Step 5: Solve for x
    x = 82,450,842,924.65/321,671.56
  6. Step 6: Final answer
    x = 256,319.96

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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.