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Finding the Fourth Proportional to 321,599.10, 443,833.98 and 178,405.26

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Solution

The fourth proportional to 321,599.10, 443,833.98 and 178,405.26 is: 246,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,599.10 : 443,833.98 = 178,405.26 : x
  2. Step 2: Convert to fraction form
    321,599.10/443,833.98 = 178,405.26/x
  3. Step 3: Cross multiply
    321,599.10x = 443,833.98 × 178,405.26
  4. Step 4: Simplify right side
    321,599.10x = 79,182,316,598.73
  5. Step 5: Solve for x
    x = 79,182,316,598.73/321,599.10
  6. Step 6: Final answer
    x = 246,214.36

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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.