Finding the Fourth Proportional to 243,724.30, 336,348.70 and 136,294.08
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Solution
The fourth proportional to 243,724.30, 336,348.70 and 136,294.08 is: 188,090.96
Step by Step Solution
- Step 1: Write the proportion equation
243,724.30 : 336,348.70 = 136,294.08 : x - Step 2: Convert to fraction form
243,724.30/336,348.70 = 136,294.08/x - Step 3: Cross multiply
243,724.30x = 336,348.70 × 136,294.08 - Step 4: Simplify right side
243,724.30x = 45,842,336,625.70 - Step 5: Solve for x
x = 45,842,336,625.70/243,724.30 - Step 6: Final answer
x = 188,090.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.