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Finding the Fourth Proportional to 325,685.07, 485,639.48 and 303,968.16

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Solution

The fourth proportional to 325,685.07, 485,639.48 and 303,968.16 is: 453,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,685.07 : 485,639.48 = 303,968.16 : x
  2. Step 2: Convert to fraction form
    325,685.07/485,639.48 = 303,968.16/x
  3. Step 3: Cross multiply
    325,685.07x = 485,639.48 × 303,968.16
  4. Step 4: Simplify right side
    325,685.07x = 147,618,939,918.88
  5. Step 5: Solve for x
    x = 147,618,939,918.88/325,685.07
  6. Step 6: Final answer
    x = 453,256.70

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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.