Finding the Fourth Proportional to 238,705.67, 329,417.84 and 136,740.05
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Solution
The fourth proportional to 238,705.67, 329,417.84 and 136,740.05 is: 188,703.57
Step by Step Solution
- Step 1: Write the proportion equation
238,705.67 : 329,417.84 = 136,740.05 : x - Step 2: Convert to fraction form
238,705.67/329,417.84 = 136,740.05/x - Step 3: Cross multiply
238,705.67x = 329,417.84 × 136,740.05 - Step 4: Simplify right side
238,705.67x = 45,044,611,842.57 - Step 5: Solve for x
x = 45,044,611,842.57/238,705.67 - Step 6: Final answer
x = 188,703.57
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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.