Home / 288,451.11-432,831.57-120,087.65

Finding the Fourth Proportional to 288,451.11, 432,831.57 and 120,087.65

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Solution

The fourth proportional to 288,451.11, 432,831.57 and 120,087.65 is: 180,195.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,451.11 : 432,831.57 = 120,087.65 : x
  2. Step 2: Convert to fraction form
    288,451.11/432,831.57 = 120,087.65/x
  3. Step 3: Cross multiply
    288,451.11x = 432,831.57 × 120,087.65
  4. Step 4: Simplify right side
    288,451.11x = 51,977,725,297.42
  5. Step 5: Solve for x
    x = 51,977,725,297.42/288,451.11
  6. Step 6: Final answer
    x = 180,195.96

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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.