Finding the Fourth Proportional to 238,673.28, 329,368.68 and 136,731.75
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Solution
The fourth proportional to 238,673.28, 329,368.68 and 136,731.75 is: 188,689.55
Step by Step Solution
- Step 1: Write the proportion equation
238,673.28 : 329,368.68 = 136,731.75 : x - Step 2: Convert to fraction form
238,673.28/329,368.68 = 136,731.75/x - Step 3: Cross multiply
238,673.28x = 329,368.68 × 136,731.75 - Step 4: Simplify right side
238,673.28x = 45,035,154,776.46 - Step 5: Solve for x
x = 45,035,154,776.46/238,673.28 - Step 6: Final answer
x = 188,689.55
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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.