Finding the Fourth Proportional to 153,989.70, 215,060.70 and 153,989.70
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Solution
The fourth proportional to 153,989.70, 215,060.70 and 153,989.70 is: 215,060.70
Step by Step Solution
- Step 1: Write the proportion equation
153,989.70 : 215,060.70 = 153,989.70 : x - Step 2: Convert to fraction form
153,989.70/215,060.70 = 153,989.70/x - Step 3: Cross multiply
153,989.70x = 215,060.70 × 153,989.70 - Step 4: Simplify right side
153,989.70x = 33,117,132,674.79 - Step 5: Solve for x
x = 33,117,132,674.79/153,989.70 - Step 6: Final answer
x = 215,060.70
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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.