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Finding the Fourth Proportional to 325,686.07, 485,640.97 and 303,969.16

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Solution

The fourth proportional to 325,686.07, 485,640.97 and 303,969.16 is: 453,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,686.07 : 485,640.97 = 303,969.16 : x
  2. Step 2: Convert to fraction form
    325,686.07/485,640.97 = 303,969.16/x
  3. Step 3: Cross multiply
    325,686.07x = 485,640.97 × 303,969.16
  4. Step 4: Simplify right side
    325,686.07x = 147,619,877,712.49
  5. Step 5: Solve for x
    x = 147,619,877,712.49/325,686.07
  6. Step 6: Final answer
    x = 453,258.19

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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.