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Finding the Fourth Proportional to 211,775.03, 317,701.52 and 69,628.33

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Solution

The fourth proportional to 211,775.03, 317,701.52 and 69,628.33 is: 104,455.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,775.03 : 317,701.52 = 69,628.33 : x
  2. Step 2: Convert to fraction form
    211,775.03/317,701.52 = 69,628.33/x
  3. Step 3: Cross multiply
    211,775.03x = 317,701.52 × 69,628.33
  4. Step 4: Simplify right side
    211,775.03x = 22,121,024,339.41
  5. Step 5: Solve for x
    x = 22,121,024,339.41/211,775.03
  6. Step 6: Final answer
    x = 104,455.30

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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.