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Finding the Fourth Proportional to 219,049.95, 326,990.40 and 192,477.90

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Solution

The fourth proportional to 219,049.95, 326,990.40 and 192,477.90 is: 287,324.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,049.95 : 326,990.40 = 192,477.90 : x
  2. Step 2: Convert to fraction form
    219,049.95/326,990.40 = 192,477.90/x
  3. Step 3: Cross multiply
    219,049.95x = 326,990.40 × 192,477.90
  4. Step 4: Simplify right side
    219,049.95x = 62,938,425,512.16
  5. Step 5: Solve for x
    x = 62,938,425,512.16/219,049.95
  6. Step 6: Final answer
    x = 287,324.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.