Finding the Fourth Proportional to 389,369.63, 537,330.09 and 210,521.63
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Solution
The fourth proportional to 389,369.63, 537,330.09 and 210,521.63 is: 290,519.85
Step by Step Solution
- Step 1: Write the proportion equation
389,369.63 : 537,330.09 = 210,521.63 : x - Step 2: Convert to fraction form
389,369.63/537,330.09 = 210,521.63/x - Step 3: Cross multiply
389,369.63x = 537,330.09 × 210,521.63 - Step 4: Simplify right side
389,369.63x = 113,119,603,708.20 - Step 5: Solve for x
x = 113,119,603,708.20/389,369.63 - Step 6: Final answer
x = 290,519.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.