Finding the Fourth Proportional to 387,700.63, 581,578.68 and 103,389.67
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Solution
The fourth proportional to 387,700.63, 581,578.68 and 103,389.67 is: 155,091.90
Step by Step Solution
- Step 1: Write the proportion equation
387,700.63 : 581,578.68 = 103,389.67 : x - Step 2: Convert to fraction form
387,700.63/581,578.68 = 103,389.67/x - Step 3: Cross multiply
387,700.63x = 581,578.68 × 103,389.67 - Step 4: Simplify right side
387,700.63x = 60,129,227,804.24 - Step 5: Solve for x
x = 60,129,227,804.24/387,700.63 - Step 6: Final answer
x = 155,091.90
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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.