Home / 211,928.70-317,893.21-54,157.31

Finding the Fourth Proportional to 211,928.70, 317,893.21 and 54,157.31

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Solution

The fourth proportional to 211,928.70, 317,893.21 and 54,157.31 is: 81,236.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,928.70 : 317,893.21 = 54,157.31 : x
  2. Step 2: Convert to fraction form
    211,928.70/317,893.21 = 54,157.31/x
  3. Step 3: Cross multiply
    211,928.70x = 317,893.21 × 54,157.31
  4. Step 4: Simplify right side
    211,928.70x = 17,216,240,588.11
  5. Step 5: Solve for x
    x = 17,216,240,588.11/211,928.70
  6. Step 6: Final answer
    x = 81,236.00

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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.