Finding the Fourth Proportional to 156,233.48, 215,515.87 and 127,193.08
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Solution
The fourth proportional to 156,233.48, 215,515.87 and 127,193.08 is: 175,456.17
Step by Step Solution
- Step 1: Write the proportion equation
156,233.48 : 215,515.87 = 127,193.08 : x - Step 2: Convert to fraction form
156,233.48/215,515.87 = 127,193.08/x - Step 3: Cross multiply
156,233.48x = 215,515.87 × 127,193.08 - Step 4: Simplify right side
156,233.48x = 27,412,127,484.08 - Step 5: Solve for x
x = 27,412,127,484.08/156,233.48 - Step 6: Final answer
x = 175,456.17
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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.