Finding the Fourth Proportional to 278,668.95, 384,560.99 and 151,344.56
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Solution
The fourth proportional to 278,668.95, 384,560.99 and 151,344.56 is: 208,854.31
Step by Step Solution
- Step 1: Write the proportion equation
278,668.95 : 384,560.99 = 151,344.56 : x - Step 2: Convert to fraction form
278,668.95/384,560.99 = 151,344.56/x - Step 3: Cross multiply
278,668.95x = 384,560.99 × 151,344.56 - Step 4: Simplify right side
278,668.95x = 58,201,211,145.19 - Step 5: Solve for x
x = 58,201,211,145.19/278,668.95 - Step 6: Final answer
x = 208,854.31
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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.