Finding the Fourth Proportional to 353,986.04, 530,838.12 and 129,295.28
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Solution
The fourth proportional to 353,986.04, 530,838.12 and 129,295.28 is: 193,891.44
Step by Step Solution
- Step 1: Write the proportion equation
353,986.04 : 530,838.12 = 129,295.28 : x - Step 2: Convert to fraction form
353,986.04/530,838.12 = 129,295.28/x - Step 3: Cross multiply
353,986.04x = 530,838.12 × 129,295.28 - Step 4: Simplify right side
353,986.04x = 68,634,863,360.07 - Step 5: Solve for x
x = 68,634,863,360.07/353,986.04 - Step 6: Final answer
x = 193,891.44
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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.