Finding the Fourth Proportional to 199,461.18, 298,981.74 and 66,305.70
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Solution
The fourth proportional to 199,461.18, 298,981.74 and 66,305.70 is: 99,388.73
Step by Step Solution
- Step 1: Write the proportion equation
199,461.18 : 298,981.74 = 66,305.70 : x - Step 2: Convert to fraction form
199,461.18/298,981.74 = 66,305.70/x - Step 3: Cross multiply
199,461.18x = 298,981.74 × 66,305.70 - Step 4: Simplify right side
199,461.18x = 19,824,193,557.92 - Step 5: Solve for x
x = 19,824,193,557.92/199,461.18 - Step 6: Final answer
x = 99,388.73
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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.