Finding the Fourth Proportional to 243,843.08, 336,487.64 and 136,394.70
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Solution
The fourth proportional to 243,843.08, 336,487.64 and 136,394.70 is: 188,215.84
Step by Step Solution
- Step 1: Write the proportion equation
243,843.08 : 336,487.64 = 136,394.70 : x - Step 2: Convert to fraction form
243,843.08/336,487.64 = 136,394.70/x - Step 3: Cross multiply
243,843.08x = 336,487.64 × 136,394.70 - Step 4: Simplify right side
243,843.08x = 45,895,130,711.51 - Step 5: Solve for x
x = 45,895,130,711.51/243,843.08 - Step 6: Final answer
x = 188,215.84
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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.