Finding the Fourth Proportional to 378,910.06, 522,862.76 and 242,703.70
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Solution
The fourth proportional to 378,910.06, 522,862.76 and 242,703.70 is: 334,909.89
Step by Step Solution
- Step 1: Write the proportion equation
378,910.06 : 522,862.76 = 242,703.70 : x - Step 2: Convert to fraction form
378,910.06/522,862.76 = 242,703.70/x - Step 3: Cross multiply
378,910.06x = 522,862.76 × 242,703.70 - Step 4: Simplify right side
378,910.06x = 126,900,726,444.21 - Step 5: Solve for x
x = 126,900,726,444.21/378,910.06 - Step 6: Final answer
x = 334,909.89
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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.