Finding the Fourth Proportional to 208,478.78, 312,656.82 and 94,560.68
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Solution
The fourth proportional to 208,478.78, 312,656.82 and 94,560.68 is: 141,813.20
Step by Step Solution
- Step 1: Write the proportion equation
208,478.78 : 312,656.82 = 94,560.68 : x - Step 2: Convert to fraction form
208,478.78/312,656.82 = 94,560.68/x - Step 3: Cross multiply
208,478.78x = 312,656.82 × 94,560.68 - Step 4: Simplify right side
208,478.78x = 29,565,041,869.07 - Step 5: Solve for x
x = 29,565,041,869.07/208,478.78 - Step 6: Final answer
x = 141,813.20
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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.