Home / 210,467.91-315,704.61-70,226.54

Finding the Fourth Proportional to 210,467.91, 315,704.61 and 70,226.54

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Solution

The fourth proportional to 210,467.91, 315,704.61 and 70,226.54 is: 105,340.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,467.91 : 315,704.61 = 70,226.54 : x
  2. Step 2: Convert to fraction form
    210,467.91/315,704.61 = 70,226.54/x
  3. Step 3: Cross multiply
    210,467.91x = 315,704.61 × 70,226.54
  4. Step 4: Simplify right side
    210,467.91x = 22,170,842,027.72
  5. Step 5: Solve for x
    x = 22,170,842,027.72/210,467.91
  6. Step 6: Final answer
    x = 105,340.72

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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.