Home / 211,766.40-317,582.25-69,578.91

Finding the Fourth Proportional to 211,766.40, 317,582.25 and 69,578.91

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Solution

The fourth proportional to 211,766.40, 317,582.25 and 69,578.91 is: 104,346.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,766.40 : 317,582.25 = 69,578.91 : x
  2. Step 2: Convert to fraction form
    211,766.40/317,582.25 = 69,578.91/x
  3. Step 3: Cross multiply
    211,766.40x = 317,582.25 × 69,578.91
  4. Step 4: Simplify right side
    211,766.40x = 22,097,026,790.35
  5. Step 5: Solve for x
    x = 22,097,026,790.35/211,766.40
  6. Step 6: Final answer
    x = 104,346.24

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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.