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Finding the Fourth Proportional to 216,992.41, 299,449.52 and 121,501.15

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Solution

The fourth proportional to 216,992.41, 299,449.52 and 121,501.15 is: 167,671.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,992.41 : 299,449.52 = 121,501.15 : x
  2. Step 2: Convert to fraction form
    216,992.41/299,449.52 = 121,501.15/x
  3. Step 3: Cross multiply
    216,992.41x = 299,449.52 × 121,501.15
  4. Step 4: Simplify right side
    216,992.41x = 36,383,461,046.95
  5. Step 5: Solve for x
    x = 36,383,461,046.95/216,992.41
  6. Step 6: Final answer
    x = 167,671.58

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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.