Finding the Fourth Proportional to 292,013.70, 438,020.55 and 198,701.70
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Solution
The fourth proportional to 292,013.70, 438,020.55 and 198,701.70 is: 298,052.55
Step by Step Solution
- Step 1: Write the proportion equation
292,013.70 : 438,020.55 = 198,701.70 : x - Step 2: Convert to fraction form
292,013.70/438,020.55 = 198,701.70/x - Step 3: Cross multiply
292,013.70x = 438,020.55 × 198,701.70 - Step 4: Simplify right side
292,013.70x = 87,035,427,919.94 - Step 5: Solve for x
x = 87,035,427,919.94/292,013.70 - Step 6: Final answer
x = 298,052.55
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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.