Finding the Fourth Proportional to 154,689.70, 216,040.70 and 154,689.70
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Solution
The fourth proportional to 154,689.70, 216,040.70 and 154,689.70 is: 216,040.70
Step by Step Solution
- Step 1: Write the proportion equation
154,689.70 : 216,040.70 = 154,689.70 : x - Step 2: Convert to fraction form
154,689.70/216,040.70 = 154,689.70/x - Step 3: Cross multiply
154,689.70x = 216,040.70 × 154,689.70 - Step 4: Simplify right side
154,689.70x = 33,419,271,070.79 - Step 5: Solve for x
x = 33,419,271,070.79/154,689.70 - Step 6: Final answer
x = 216,040.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.