Finding the Fourth Proportional to 381,452.93, 526,411.71 and 209,386.99
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Solution
The fourth proportional to 381,452.93, 526,411.71 and 209,386.99 is: 288,957.71
Step by Step Solution
- Step 1: Write the proportion equation
381,452.93 : 526,411.71 = 209,386.99 : x - Step 2: Convert to fraction form
381,452.93/526,411.71 = 209,386.99/x - Step 3: Cross multiply
381,452.93x = 526,411.71 × 209,386.99 - Step 4: Simplify right side
381,452.93x = 110,223,762,141.62 - Step 5: Solve for x
x = 110,223,762,141.62/381,452.93 - Step 6: Final answer
x = 288,957.71
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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.