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Finding the Fourth Proportional to 343,391.60, 515,087.40 and 325,895.60

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Solution

The fourth proportional to 343,391.60, 515,087.40 and 325,895.60 is: 488,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,391.60 : 515,087.40 = 325,895.60 : x
  2. Step 2: Convert to fraction form
    343,391.60/515,087.40 = 325,895.60/x
  3. Step 3: Cross multiply
    343,391.60x = 515,087.40 × 325,895.60
  4. Step 4: Simplify right side
    343,391.60x = 167,864,717,275.44
  5. Step 5: Solve for x
    x = 167,864,717,275.44/343,391.60
  6. Step 6: Final answer
    x = 488,843.40

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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.