Finding the Fourth Proportional to 399,173.06, 550,980.94 and 246,258.84
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Solution
The fourth proportional to 399,173.06, 550,980.94 and 246,258.84 is: 339,912.54
Step by Step Solution
- Step 1: Write the proportion equation
399,173.06 : 550,980.94 = 246,258.84 : x - Step 2: Convert to fraction form
399,173.06/550,980.94 = 246,258.84/x - Step 3: Cross multiply
399,173.06x = 550,980.94 × 246,258.84 - Step 4: Simplify right side
399,173.06x = 135,683,927,146.51 - Step 5: Solve for x
x = 135,683,927,146.51/399,173.06 - Step 6: Final answer
x = 339,912.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.