Finding the Fourth Proportional to 378,741.74, 522,663.24 and 208,975.88
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Solution
The fourth proportional to 378,741.74, 522,663.24 and 208,975.88 is: 288,386.52
Step by Step Solution
- Step 1: Write the proportion equation
378,741.74 : 522,663.24 = 208,975.88 : x - Step 2: Convert to fraction form
378,741.74/522,663.24 = 208,975.88/x - Step 3: Cross multiply
378,741.74x = 522,663.24 × 208,975.88 - Step 4: Simplify right side
378,741.74x = 109,224,010,522.65 - Step 5: Solve for x
x = 109,224,010,522.65/378,741.74 - Step 6: Final answer
x = 288,386.52
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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.