Home / 279,677.40-419,235.18-89,998.37

Finding the Fourth Proportional to 279,677.40, 419,235.18 and 89,998.37

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Solution

The fourth proportional to 279,677.40, 419,235.18 and 89,998.37 is: 134,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,677.40 : 419,235.18 = 89,998.37 : x
  2. Step 2: Convert to fraction form
    279,677.40/419,235.18 = 89,998.37/x
  3. Step 3: Cross multiply
    279,677.40x = 419,235.18 × 89,998.37
  4. Step 4: Simplify right side
    279,677.40x = 37,730,480,750.48
  5. Step 5: Solve for x
    x = 37,730,480,750.48/279,677.40
  6. Step 6: Final answer
    x = 134,907.15

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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.