Home / 286,923.75-430,357.92-87,245.85

Finding the Fourth Proportional to 286,923.75, 430,357.92 and 87,245.85

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Solution

The fourth proportional to 286,923.75, 430,357.92 and 87,245.85 is: 130,860.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,923.75 : 430,357.92 = 87,245.85 : x
  2. Step 2: Convert to fraction form
    286,923.75/430,357.92 = 87,245.85/x
  3. Step 3: Cross multiply
    286,923.75x = 430,357.92 × 87,245.85
  4. Step 4: Simplify right side
    286,923.75x = 37,546,942,534.63
  5. Step 5: Solve for x
    x = 37,546,942,534.63/286,923.75
  6. Step 6: Final answer
    x = 130,860.35

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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.