Finding the Fourth Proportional to 415,555.30, 623,102.55 and 178,857.70
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Solution
The fourth proportional to 415,555.30, 623,102.55 and 178,857.70 is: 268,187.38
Step by Step Solution
- Step 1: Write the proportion equation
415,555.30 : 623,102.55 = 178,857.70 : x - Step 2: Convert to fraction form
415,555.30/623,102.55 = 178,857.70/x - Step 3: Cross multiply
415,555.30x = 623,102.55 × 178,857.70 - Step 4: Simplify right side
415,555.30x = 111,446,688,957.14 - Step 5: Solve for x
x = 111,446,688,957.14/415,555.30 - Step 6: Final answer
x = 268,187.38
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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.