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Finding the Fourth Proportional to 321,630.73, 443,779.08 and 185,656.03

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Solution

The fourth proportional to 321,630.73, 443,779.08 and 185,656.03 is: 256,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,630.73 : 443,779.08 = 185,656.03 : x
  2. Step 2: Convert to fraction form
    321,630.73/443,779.08 = 185,656.03/x
  3. Step 3: Cross multiply
    321,630.73x = 443,779.08 × 185,656.03
  4. Step 4: Simplify right side
    321,630.73x = 82,390,262,189.85
  5. Step 5: Solve for x
    x = 82,390,262,189.85/321,630.73
  6. Step 6: Final answer
    x = 256,164.15

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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.