Home / 377,664.40-565,330.20-219,422.80

Finding the Fourth Proportional to 377,664.40, 565,330.20 and 219,422.80

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Solution

The fourth proportional to 377,664.40, 565,330.20 and 219,422.80 is: 328,456.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,664.40 : 565,330.20 = 219,422.80 : x
  2. Step 2: Convert to fraction form
    377,664.40/565,330.20 = 219,422.80/x
  3. Step 3: Cross multiply
    377,664.40x = 565,330.20 × 219,422.80
  4. Step 4: Simplify right side
    377,664.40x = 124,046,335,408.56
  5. Step 5: Solve for x
    x = 124,046,335,408.56/377,664.40
  6. Step 6: Final answer
    x = 328,456.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.