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Finding the Fourth Proportional to 210,735.58, 315,770.45 and 171,099.04

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Solution

The fourth proportional to 210,735.58, 315,770.45 and 171,099.04 is: 256,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,735.58 : 315,770.45 = 171,099.04 : x
  2. Step 2: Convert to fraction form
    210,735.58/315,770.45 = 171,099.04/x
  3. Step 3: Cross multiply
    210,735.58x = 315,770.45 × 171,099.04
  4. Step 4: Simplify right side
    210,735.58x = 54,028,020,855.37
  5. Step 5: Solve for x
    x = 54,028,020,855.37/210,735.58
  6. Step 6: Final answer
    x = 256,378.26

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1.5x scale

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.