Home / 211,857.48-317,920.14-118,424.52

Finding the Fourth Proportional to 211,857.48, 317,920.14 and 118,424.52

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Solution

The fourth proportional to 211,857.48, 317,920.14 and 118,424.52 is: 177,711.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,857.48 : 317,920.14 = 118,424.52 : x
  2. Step 2: Convert to fraction form
    211,857.48/317,920.14 = 118,424.52/x
  3. Step 3: Cross multiply
    211,857.48x = 317,920.14 × 118,424.52
  4. Step 4: Simplify right side
    211,857.48x = 37,649,539,977.83
  5. Step 5: Solve for x
    x = 37,649,539,977.83/211,857.48
  6. Step 6: Final answer
    x = 177,711.64

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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.