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Finding the Fourth Proportional to 338,479.79, 467,153.55 and 216,025

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Solution

The fourth proportional to 338,479.79, 467,153.55 and 216,025 is: 298,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,479.79 : 467,153.55 = 216,025 : x
  2. Step 2: Convert to fraction form
    338,479.79/467,153.55 = 216,025/x
  3. Step 3: Cross multiply
    338,479.79x = 467,153.55 × 216,025
  4. Step 4: Simplify right side
    338,479.79x = 100,916,845,638.75
  5. Step 5: Solve for x
    x = 100,916,845,638.75/338,479.79
  6. Step 6: Final answer
    x = 298,147.33

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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.