Finding the Fourth Proportional to 278,630.62, 384,506.87 and 151,307.12
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Solution
The fourth proportional to 278,630.62, 384,506.87 and 151,307.12 is: 208,801.99
Step by Step Solution
- Step 1: Write the proportion equation
278,630.62 : 384,506.87 = 151,307.12 : x - Step 2: Convert to fraction form
278,630.62/384,506.87 = 151,307.12/x - Step 3: Cross multiply
278,630.62x = 384,506.87 × 151,307.12 - Step 4: Simplify right side
278,630.62x = 58,178,627,324.65 - Step 5: Solve for x
x = 58,178,627,324.65/278,630.62 - Step 6: Final answer
x = 208,801.99
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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.