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Finding the Fourth Proportional to 211,992.66, 292,548.92 and 121,348.13

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Solution

The fourth proportional to 211,992.66, 292,548.92 and 121,348.13 is: 167,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,992.66 : 292,548.92 = 121,348.13 : x
  2. Step 2: Convert to fraction form
    211,992.66/292,548.92 = 121,348.13/x
  3. Step 3: Cross multiply
    211,992.66x = 292,548.92 × 121,348.13
  4. Step 4: Simplify right side
    211,992.66x = 35,500,262,306.03
  5. Step 5: Solve for x
    x = 35,500,262,306.03/211,992.66
  6. Step 6: Final answer
    x = 167,459.87

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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.