Finding the Fourth Proportional to 493,148.36, 739,729.82 and 138,139.94
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Solution
The fourth proportional to 493,148.36, 739,729.82 and 138,139.94 is: 207,211.94
Step by Step Solution
- Step 1: Write the proportion equation
493,148.36 : 739,729.82 = 138,139.94 : x - Step 2: Convert to fraction form
493,148.36/739,729.82 = 138,139.94/x - Step 3: Cross multiply
493,148.36x = 739,729.82 × 138,139.94 - Step 4: Simplify right side
493,148.36x = 102,186,228,561.66 - Step 5: Solve for x
x = 102,186,228,561.66/493,148.36 - Step 6: Final answer
x = 207,211.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.