Finding the Fourth Proportional to 291,817.28, 402,707.36 and 157,680.96
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Solution
The fourth proportional to 291,817.28, 402,707.36 and 157,680.96 is: 217,599.46
Step by Step Solution
- Step 1: Write the proportion equation
291,817.28 : 402,707.36 = 157,680.96 : x - Step 2: Convert to fraction form
291,817.28/402,707.36 = 157,680.96/x - Step 3: Cross multiply
291,817.28x = 402,707.36 × 157,680.96 - Step 4: Simplify right side
291,817.28x = 63,499,283,123.87 - Step 5: Solve for x
x = 63,499,283,123.87/291,817.28 - Step 6: Final answer
x = 217,599.46
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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.