Home / 211,338.15-317,055.82-69,188.01

Finding the Fourth Proportional to 211,338.15, 317,055.82 and 69,188.01

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Solution

The fourth proportional to 211,338.15, 317,055.82 and 69,188.01 is: 103,797.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,338.15 : 317,055.82 = 69,188.01 : x
  2. Step 2: Convert to fraction form
    211,338.15/317,055.82 = 69,188.01/x
  3. Step 3: Cross multiply
    211,338.15x = 317,055.82 × 69,188.01
  4. Step 4: Simplify right side
    211,338.15x = 21,936,460,012.52
  5. Step 5: Solve for x
    x = 21,936,460,012.52/211,338.15
  6. Step 6: Final answer
    x = 103,797.92

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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.