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Finding the Fourth Proportional to 336,422.80, 505,217.40 and 325,925.20

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Solution

The fourth proportional to 336,422.80, 505,217.40 and 325,925.20 is: 489,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,422.80 : 505,217.40 = 325,925.20 : x
  2. Step 2: Convert to fraction form
    336,422.80/505,217.40 = 325,925.20/x
  3. Step 3: Cross multiply
    336,422.80x = 505,217.40 × 325,925.20
  4. Step 4: Simplify right side
    336,422.80x = 164,663,082,138.48
  5. Step 5: Solve for x
    x = 164,663,082,138.48/336,422.80
  6. Step 6: Final answer
    x = 489,452.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.