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Finding the Fourth Proportional to 321,893, 444,212.34 and 180,581

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Solution

The fourth proportional to 321,893, 444,212.34 and 180,581 is: 249,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,893 : 444,212.34 = 180,581 : x
  2. Step 2: Convert to fraction form
    321,893/444,212.34 = 180,581/x
  3. Step 3: Cross multiply
    321,893x = 444,212.34 × 180,581
  4. Step 4: Simplify right side
    321,893x = 80,216,308,569.54
  5. Step 5: Solve for x
    x = 80,216,308,569.54/321,893
  6. Step 6: Final answer
    x = 249,201.78

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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.