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Finding the Fourth Proportional to 338,893.59, 467,289.66 and 216,221.79

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Solution

The fourth proportional to 338,893.59, 467,289.66 and 216,221.79 is: 298,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,893.59 : 467,289.66 = 216,221.79 : x
  2. Step 2: Convert to fraction form
    338,893.59/467,289.66 = 216,221.79/x
  3. Step 3: Cross multiply
    338,893.59x = 467,289.66 × 216,221.79
  4. Step 4: Simplify right side
    338,893.59x = 101,038,206,733.69
  5. Step 5: Solve for x
    x = 101,038,206,733.69/338,893.59
  6. Step 6: Final answer
    x = 298,141.39

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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.