Finding the Fourth Proportional to 198,768.08, 298,038.81 and 135,664.59
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Solution
The fourth proportional to 198,768.08, 298,038.81 and 135,664.59 is: 203,419.55
Step by Step Solution
- Step 1: Write the proportion equation
198,768.08 : 298,038.81 = 135,664.59 : x - Step 2: Convert to fraction form
198,768.08/298,038.81 = 135,664.59/x - Step 3: Cross multiply
198,768.08x = 298,038.81 × 135,664.59 - Step 4: Simplify right side
198,768.08x = 40,433,312,962.74 - Step 5: Solve for x
x = 40,433,312,962.74/198,768.08 - Step 6: Final answer
x = 203,419.55
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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.