Finding the Fourth Proportional to 411,017.79, 616,876.61 and 161,874.75
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Solution
The fourth proportional to 411,017.79, 616,876.61 and 161,874.75 is: 242,949.94
Step by Step Solution
- Step 1: Write the proportion equation
411,017.79 : 616,876.61 = 161,874.75 : x - Step 2: Convert to fraction form
411,017.79/616,876.61 = 161,874.75/x - Step 3: Cross multiply
411,017.79x = 616,876.61 × 161,874.75 - Step 4: Simplify right side
411,017.79x = 99,856,746,215.22 - Step 5: Solve for x
x = 99,856,746,215.22/411,017.79 - Step 6: Final answer
x = 242,949.94
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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.