Home / 279,867.04-419,794.80-92,880.16

Finding the Fourth Proportional to 279,867.04, 419,794.80 and 92,880.16

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Solution

The fourth proportional to 279,867.04, 419,794.80 and 92,880.16 is: 139,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,867.04 : 419,794.80 = 92,880.16 : x
  2. Step 2: Convert to fraction form
    279,867.04/419,794.80 = 92,880.16/x
  3. Step 3: Cross multiply
    279,867.04x = 419,794.80 × 92,880.16
  4. Step 4: Simplify right side
    279,867.04x = 38,990,608,191.17
  5. Step 5: Solve for x
    x = 38,990,608,191.17/279,867.04
  6. Step 6: Final answer
    x = 139,318.33

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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.