Home / 211,538.28-317,317.68-69,370.98

Finding the Fourth Proportional to 211,538.28, 317,317.68 and 69,370.98

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Solution

The fourth proportional to 211,538.28, 317,317.68 and 69,370.98 is: 104,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,538.28 : 317,317.68 = 69,370.98 : x
  2. Step 2: Convert to fraction form
    211,538.28/317,317.68 = 69,370.98/x
  3. Step 3: Cross multiply
    211,538.28x = 317,317.68 × 69,370.98
  4. Step 4: Simplify right side
    211,538.28x = 22,012,638,832.79
  5. Step 5: Solve for x
    x = 22,012,638,832.79/211,538.28
  6. Step 6: Final answer
    x = 104,059.83

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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.