Finding the Fourth Proportional to 338,990.08, 508,431.12 and 89,691.52
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Solution
The fourth proportional to 338,990.08, 508,431.12 and 89,691.52 is: 134,522.99
Step by Step Solution
- Step 1: Write the proportion equation
338,990.08 : 508,431.12 = 89,691.52 : x - Step 2: Convert to fraction form
338,990.08/508,431.12 = 89,691.52/x - Step 3: Cross multiply
338,990.08x = 508,431.12 × 89,691.52 - Step 4: Simplify right side
338,990.08x = 45,601,959,968.10 - Step 5: Solve for x
x = 45,601,959,968.10/338,990.08 - Step 6: Final answer
x = 134,522.99
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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.