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Finding the Fourth Proportional to 321,675.04, 443,909.92 and 178,433.60

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Solution

The fourth proportional to 321,675.04, 443,909.92 and 178,433.60 is: 246,237.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,675.04 : 443,909.92 = 178,433.60 : x
  2. Step 2: Convert to fraction form
    321,675.04/443,909.92 = 178,433.60/x
  3. Step 3: Cross multiply
    321,675.04x = 443,909.92 × 178,433.60
  4. Step 4: Simplify right side
    321,675.04x = 79,208,445,101.31
  5. Step 5: Solve for x
    x = 79,208,445,101.31/321,675.04
  6. Step 6: Final answer
    x = 246,237.46

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1.5x scale

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.