Finding the Fourth Proportional to 238,705.73, 329,417.18 and 136,731.14
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Solution
The fourth proportional to 238,705.73, 329,417.18 and 136,731.14 is: 188,690.84
Step by Step Solution
- Step 1: Write the proportion equation
238,705.73 : 329,417.18 = 136,731.14 : x - Step 2: Convert to fraction form
238,705.73/329,417.18 = 136,731.14/x - Step 3: Cross multiply
238,705.73x = 329,417.18 × 136,731.14 - Step 4: Simplify right side
238,705.73x = 45,041,584,226.24 - Step 5: Solve for x
x = 45,041,584,226.24/238,705.73 - Step 6: Final answer
x = 188,690.84
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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.