Finding the Fourth Proportional to 158,138.40, 237,207.84 and 39,809.76
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Solution
The fourth proportional to 158,138.40, 237,207.84 and 39,809.76 is: 59,714.70
Step by Step Solution
- Step 1: Write the proportion equation
158,138.40 : 237,207.84 = 39,809.76 : x - Step 2: Convert to fraction form
158,138.40/237,207.84 = 39,809.76/x - Step 3: Cross multiply
158,138.40x = 237,207.84 × 39,809.76 - Step 4: Simplify right side
158,138.40x = 9,443,187,180.52 - Step 5: Solve for x
x = 9,443,187,180.52/158,138.40 - Step 6: Final answer
x = 59,714.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.