Home / 211,821.48-317,866.14-118,388.52

Finding the Fourth Proportional to 211,821.48, 317,866.14 and 118,388.52

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Solution

The fourth proportional to 211,821.48, 317,866.14 and 118,388.52 is: 177,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,821.48 : 317,866.14 = 118,388.52 : x
  2. Step 2: Convert to fraction form
    211,821.48/317,866.14 = 118,388.52/x
  3. Step 3: Cross multiply
    211,821.48x = 317,866.14 × 118,388.52
  4. Step 4: Simplify right side
    211,821.48x = 37,631,701,872.71
  5. Step 5: Solve for x
    x = 37,631,701,872.71/211,821.48
  6. Step 6: Final answer
    x = 177,657.63

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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.