Finding the Fourth Proportional to 285,790.80, 394,372.08 and 158,461.68
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Solution
The fourth proportional to 285,790.80, 394,372.08 and 158,461.68 is: 218,666.46
Step by Step Solution
- Step 1: Write the proportion equation
285,790.80 : 394,372.08 = 158,461.68 : x - Step 2: Convert to fraction form
285,790.80/394,372.08 = 158,461.68/x - Step 3: Cross multiply
285,790.80x = 394,372.08 × 158,461.68 - Step 4: Simplify right side
285,790.80x = 62,492,862,341.89 - Step 5: Solve for x
x = 62,492,862,341.89/285,790.80 - Step 6: Final answer
x = 218,666.46
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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.