Finding the Fourth Proportional to 243,326.60, 364,990.76 and 74,845.79
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Solution
The fourth proportional to 243,326.60, 364,990.76 and 74,845.79 is: 112,268.95
Step by Step Solution
- Step 1: Write the proportion equation
243,326.60 : 364,990.76 = 74,845.79 : x - Step 2: Convert to fraction form
243,326.60/364,990.76 = 74,845.79/x - Step 3: Cross multiply
243,326.60x = 364,990.76 × 74,845.79 - Step 4: Simplify right side
243,326.60x = 27,318,021,774.90 - Step 5: Solve for x
x = 27,318,021,774.90/243,326.60 - Step 6: Final answer
x = 112,268.95
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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.