Finding the Fourth Proportional to 571,578.68, 857,359.10 and 139,301.08
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Solution
The fourth proportional to 571,578.68, 857,359.10 and 139,301.08 is: 208,949.45
Step by Step Solution
- Step 1: Write the proportion equation
571,578.68 : 857,359.10 = 139,301.08 : x - Step 2: Convert to fraction form
571,578.68/857,359.10 = 139,301.08/x - Step 3: Cross multiply
571,578.68x = 857,359.10 × 139,301.08 - Step 4: Simplify right side
571,578.68x = 119,431,048,577.83 - Step 5: Solve for x
x = 119,431,048,577.83/571,578.68 - Step 6: Final answer
x = 208,949.45
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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.