Home / 279,869.21-386,218.60-152,544.80

Finding the Fourth Proportional to 279,869.21, 386,218.60 and 152,544.80

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Solution

The fourth proportional to 279,869.21, 386,218.60 and 152,544.80 is: 210,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,869.21 : 386,218.60 = 152,544.80 : x
  2. Step 2: Convert to fraction form
    279,869.21/386,218.60 = 152,544.80/x
  3. Step 3: Cross multiply
    279,869.21x = 386,218.60 × 152,544.80
  4. Step 4: Simplify right side
    279,869.21x = 58,915,639,677.46
  5. Step 5: Solve for x
    x = 58,915,639,677.46/279,869.21
  6. Step 6: Final answer
    x = 210,511.33

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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.