Finding the Fourth Proportional to 384,739.36, 530,939.20 and 214,973.62
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Solution
The fourth proportional to 384,739.36, 530,939.20 and 214,973.62 is: 296,662.97
Step by Step Solution
- Step 1: Write the proportion equation
384,739.36 : 530,939.20 = 214,973.62 : x - Step 2: Convert to fraction form
384,739.36/530,939.20 = 214,973.62/x - Step 3: Cross multiply
384,739.36x = 530,939.20 × 214,973.62 - Step 4: Simplify right side
384,739.36x = 114,137,921,823.90 - Step 5: Solve for x
x = 114,137,921,823.90/384,739.36 - Step 6: Final answer
x = 296,662.97
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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.