Finding the Fourth Proportional to 358,239.28, 494,352.12 and 214,970.80
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Solution
The fourth proportional to 358,239.28, 494,352.12 and 214,970.80 is: 296,648.85
Step by Step Solution
- Step 1: Write the proportion equation
358,239.28 : 494,352.12 = 214,970.80 : x - Step 2: Convert to fraction form
358,239.28/494,352.12 = 214,970.80/x - Step 3: Cross multiply
358,239.28x = 494,352.12 × 214,970.80 - Step 4: Simplify right side
358,239.28x = 106,271,270,718.10 - Step 5: Solve for x
x = 106,271,270,718.10/358,239.28 - Step 6: Final answer
x = 296,648.85
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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.