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Finding the Fourth Proportional to 210,164.92, 315,250.11 and 69,923.54

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Solution

The fourth proportional to 210,164.92, 315,250.11 and 69,923.54 is: 104,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,164.92 : 315,250.11 = 69,923.54 : x
  2. Step 2: Convert to fraction form
    210,164.92/315,250.11 = 69,923.54/x
  3. Step 3: Cross multiply
    210,164.92x = 315,250.11 × 69,923.54
  4. Step 4: Simplify right side
    210,164.92x = 22,043,404,464.71
  5. Step 5: Solve for x
    x = 22,043,404,464.71/210,164.92
  6. Step 6: Final answer
    x = 104,886.22

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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.