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Finding the Fourth Proportional to 210,468.06, 315,704.82 and 70,226.68

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Solution

The fourth proportional to 210,468.06, 315,704.82 and 70,226.68 is: 105,340.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,468.06 : 315,704.82 = 70,226.68 : x
  2. Step 2: Convert to fraction form
    210,468.06/315,704.82 = 70,226.68/x
  3. Step 3: Cross multiply
    210,468.06x = 315,704.82 × 70,226.68
  4. Step 4: Simplify right side
    210,468.06x = 22,170,902,766.51
  5. Step 5: Solve for x
    x = 22,170,902,766.51/210,468.06
  6. Step 6: Final answer
    x = 105,340.94

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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.