Home / 211,451.47-317,212.72-104,840.69

Finding the Fourth Proportional to 211,451.47, 317,212.72 and 104,840.69

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Solution

The fourth proportional to 211,451.47, 317,212.72 and 104,840.69 is: 157,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,451.47 : 317,212.72 = 104,840.69 : x
  2. Step 2: Convert to fraction form
    211,451.47/317,212.72 = 104,840.69/x
  3. Step 3: Cross multiply
    211,451.47x = 317,212.72 × 104,840.69
  4. Step 4: Simplify right side
    211,451.47x = 33,256,798,593.41
  5. Step 5: Solve for x
    x = 33,256,798,593.41/211,451.47
  6. Step 6: Final answer
    x = 157,278.64

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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.