Home / 211,923.36-317,914.56-71,644.32

Finding the Fourth Proportional to 211,923.36, 317,914.56 and 71,644.32

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Solution

The fourth proportional to 211,923.36, 317,914.56 and 71,644.32 is: 107,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,923.36 : 317,914.56 = 71,644.32 : x
  2. Step 2: Convert to fraction form
    211,923.36/317,914.56 = 71,644.32/x
  3. Step 3: Cross multiply
    211,923.36x = 317,914.56 × 71,644.32
  4. Step 4: Simplify right side
    211,923.36x = 22,776,772,469.30
  5. Step 5: Solve for x
    x = 22,776,772,469.30/211,923.36
  6. Step 6: Final answer
    x = 107,476.46

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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.