Finding the Fourth Proportional to 292,382.40, 438,220.38 and 142,397.94
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Solution
The fourth proportional to 292,382.40, 438,220.38 and 142,397.94 is: 213,424.88
Step by Step Solution
- Step 1: Write the proportion equation
292,382.40 : 438,220.38 = 142,397.94 : x - Step 2: Convert to fraction form
292,382.40/438,220.38 = 142,397.94/x - Step 3: Cross multiply
292,382.40x = 438,220.38 × 142,397.94 - Step 4: Simplify right side
292,382.40x = 62,401,679,378.02 - Step 5: Solve for x
x = 62,401,679,378.02/292,382.40 - Step 6: Final answer
x = 213,424.88
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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.