Finding the Fourth Proportional to 284,582.18, 392,723.55 and 157,257.77
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Solution
The fourth proportional to 284,582.18, 392,723.55 and 157,257.77 is: 217,015.80
Step by Step Solution
- Step 1: Write the proportion equation
284,582.18 : 392,723.55 = 157,257.77 : x - Step 2: Convert to fraction form
284,582.18/392,723.55 = 157,257.77/x - Step 3: Cross multiply
284,582.18x = 392,723.55 × 157,257.77 - Step 4: Simplify right side
284,582.18x = 61,758,829,699.48 - Step 5: Solve for x
x = 61,758,829,699.48/284,582.18 - Step 6: Final answer
x = 217,015.80
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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.