Finding the Fourth Proportional to 657,604.22, 986,434.18 and 208,315.14
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Solution
The fourth proportional to 657,604.22, 986,434.18 and 208,315.14 is: 312,481.53
Step by Step Solution
- Step 1: Write the proportion equation
657,604.22 : 986,434.18 = 208,315.14 : x - Step 2: Convert to fraction form
657,604.22/986,434.18 = 208,315.14/x - Step 3: Cross multiply
657,604.22x = 986,434.18 × 208,315.14 - Step 4: Simplify right side
657,604.22x = 205,489,174,307.49 - Step 5: Solve for x
x = 205,489,174,307.49/657,604.22 - Step 6: Final answer
x = 312,481.53
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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.