Finding the Fourth Proportional to 280,862.84, 387,793.68 and 173,579.96
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Solution
The fourth proportional to 280,862.84, 387,793.68 and 173,579.96 is: 239,665.78
Step by Step Solution
- Step 1: Write the proportion equation
280,862.84 : 387,793.68 = 173,579.96 : x - Step 2: Convert to fraction form
280,862.84/387,793.68 = 173,579.96/x - Step 3: Cross multiply
280,862.84x = 387,793.68 × 173,579.96 - Step 4: Simplify right side
280,862.84x = 67,313,211,781.21 - Step 5: Solve for x
x = 67,313,211,781.21/280,862.84 - Step 6: Final answer
x = 239,665.78
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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.