Finding the Fourth Proportional to 387,677.19, 581,515.98 and 147,735.14
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Solution
The fourth proportional to 387,677.19, 581,515.98 and 147,735.14 is: 221,602.79
Step by Step Solution
- Step 1: Write the proportion equation
387,677.19 : 581,515.98 = 147,735.14 : x - Step 2: Convert to fraction form
387,677.19/581,515.98 = 147,735.14/x - Step 3: Cross multiply
387,677.19x = 581,515.98 × 147,735.14 - Step 4: Simplify right side
387,677.19x = 85,910,345,773.49 - Step 5: Solve for x
x = 85,910,345,773.49/387,677.19 - Step 6: Final answer
x = 221,602.79
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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.