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Finding the Fourth Proportional to 321,265.68, 443,341.44 and 178,025.28

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Solution

The fourth proportional to 321,265.68, 443,341.44 and 178,025.28 is: 245,672.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,265.68 : 443,341.44 = 178,025.28 : x
  2. Step 2: Convert to fraction form
    321,265.68/443,341.44 = 178,025.28/x
  3. Step 3: Cross multiply
    321,265.68x = 443,341.44 × 178,025.28
  4. Step 4: Simplify right side
    321,265.68x = 78,925,983,991.60
  5. Step 5: Solve for x
    x = 78,925,983,991.60/321,265.68
  6. Step 6: Final answer
    x = 245,672.01

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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.