Finding the Fourth Proportional to 258,307.24, 387,438.84 and 89,784.30
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Solution
The fourth proportional to 258,307.24, 387,438.84 and 89,784.30 is: 134,668.80
Step by Step Solution
- Step 1: Write the proportion equation
258,307.24 : 387,438.84 = 89,784.30 : x - Step 2: Convert to fraction form
258,307.24/387,438.84 = 89,784.30/x - Step 3: Cross multiply
258,307.24x = 387,438.84 × 89,784.30 - Step 4: Simplify right side
258,307.24x = 34,785,925,042.21 - Step 5: Solve for x
x = 34,785,925,042.21/258,307.24 - Step 6: Final answer
x = 134,668.80
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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.