Home / 289,229.44-433,831.32-78,867.40

Finding the Fourth Proportional to 289,229.44, 433,831.32 and 78,867.40

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Solution

The fourth proportional to 289,229.44, 433,831.32 and 78,867.40 is: 118,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,229.44 : 433,831.32 = 78,867.40 : x
  2. Step 2: Convert to fraction form
    289,229.44/433,831.32 = 78,867.40/x
  3. Step 3: Cross multiply
    289,229.44x = 433,831.32 × 78,867.40
  4. Step 4: Simplify right side
    289,229.44x = 34,215,148,246.97
  5. Step 5: Solve for x
    x = 34,215,148,246.97/289,229.44
  6. Step 6: Final answer
    x = 118,297.60

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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.