Finding the Fourth Proportional to 657,339.99, 986,157.68 and 208,087.80
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Solution
The fourth proportional to 657,339.99, 986,157.68 and 208,087.80 is: 312,178.45
Step by Step Solution
- Step 1: Write the proportion equation
657,339.99 : 986,157.68 = 208,087.80 : x - Step 2: Convert to fraction form
657,339.99/986,157.68 = 208,087.80/x - Step 3: Cross multiply
657,339.99x = 986,157.68 × 208,087.80 - Step 4: Simplify right side
657,339.99x = 205,207,381,043.87 - Step 5: Solve for x
x = 205,207,381,043.87/657,339.99 - Step 6: Final answer
x = 312,178.45
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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.