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Finding the Fourth Proportional to 211,673.72, 292,059.47 and 119,794.21

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Solution

The fourth proportional to 211,673.72, 292,059.47 and 119,794.21 is: 165,287.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,673.72 : 292,059.47 = 119,794.21 : x
  2. Step 2: Convert to fraction form
    211,673.72/292,059.47 = 119,794.21/x
  3. Step 3: Cross multiply
    211,673.72x = 292,059.47 × 119,794.21
  4. Step 4: Simplify right side
    211,673.72x = 34,987,033,051.01
  5. Step 5: Solve for x
    x = 34,987,033,051.01/211,673.72
  6. Step 6: Final answer
    x = 165,287.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.