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Finding the Fourth Proportional to 341,172.80, 511,759.20 and 325,620.80

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Solution

The fourth proportional to 341,172.80, 511,759.20 and 325,620.80 is: 488,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,172.80 : 511,759.20 = 325,620.80 : x
  2. Step 2: Convert to fraction form
    341,172.80/511,759.20 = 325,620.80/x
  3. Step 3: Cross multiply
    341,172.80x = 511,759.20 × 325,620.80
  4. Step 4: Simplify right side
    341,172.80x = 166,639,440,111.36
  5. Step 5: Solve for x
    x = 166,639,440,111.36/341,172.80
  6. Step 6: Final answer
    x = 488,431.20

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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.