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Finding the Fourth Proportional to 216,456.91, 298,684.66 and 119,647.69

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Solution

The fourth proportional to 216,456.91, 298,684.66 and 119,647.69 is: 165,099.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,456.91 : 298,684.66 = 119,647.69 : x
  2. Step 2: Convert to fraction form
    216,456.91/298,684.66 = 119,647.69/x
  3. Step 3: Cross multiply
    216,456.91x = 298,684.66 × 119,647.69
  4. Step 4: Simplify right side
    216,456.91x = 35,736,930,130.35
  5. Step 5: Solve for x
    x = 35,736,930,130.35/216,456.91
  6. Step 6: Final answer
    x = 165,099.51

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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.