Finding the Fourth Proportional to 438,730.29, 657,964.67 and 186,006.74
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Solution
The fourth proportional to 438,730.29, 657,964.67 and 186,006.74 is: 278,954.66
Step by Step Solution
- Step 1: Write the proportion equation
438,730.29 : 657,964.67 = 186,006.74 : x - Step 2: Convert to fraction form
438,730.29/657,964.67 = 186,006.74/x - Step 3: Cross multiply
438,730.29x = 657,964.67 × 186,006.74 - Step 4: Simplify right side
438,730.29x = 122,385,859,082.02 - Step 5: Solve for x
x = 122,385,859,082.02/438,730.29 - Step 6: Final answer
x = 278,954.66
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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.