Home / 211,333.30-317,029.56-69,189.70

Finding the Fourth Proportional to 211,333.30, 317,029.56 and 69,189.70

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Solution

The fourth proportional to 211,333.30, 317,029.56 and 69,189.70 is: 103,794.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,333.30 : 317,029.56 = 69,189.70 : x
  2. Step 2: Convert to fraction form
    211,333.30/317,029.56 = 69,189.70/x
  3. Step 3: Cross multiply
    211,333.30x = 317,029.56 × 69,189.70
  4. Step 4: Simplify right side
    211,333.30x = 21,935,180,147.53
  5. Step 5: Solve for x
    x = 21,935,180,147.53/211,333.30
  6. Step 6: Final answer
    x = 103,794.24

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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.