Finding the Fourth Proportional to 381,394.94, 526,329.14 and 209,307.80
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Solution
The fourth proportional to 381,394.94, 526,329.14 and 209,307.80 is: 288,847.03
Step by Step Solution
- Step 1: Write the proportion equation
381,394.94 : 526,329.14 = 209,307.80 : x - Step 2: Convert to fraction form
381,394.94/526,329.14 = 209,307.80/x - Step 3: Cross multiply
381,394.94x = 526,329.14 × 209,307.80 - Step 4: Simplify right side
381,394.94x = 110,164,794,369.29 - Step 5: Solve for x
x = 110,164,794,369.29/381,394.94 - Step 6: Final answer
x = 288,847.03
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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.