Finding the Fourth Proportional to 238,245.10, 328,778.60 and 130,822.09
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Solution
The fourth proportional to 238,245.10, 328,778.60 and 130,822.09 is: 180,534.68
Step by Step Solution
- Step 1: Write the proportion equation
238,245.10 : 328,778.60 = 130,822.09 : x - Step 2: Convert to fraction form
238,245.10/328,778.60 = 130,822.09/x - Step 3: Cross multiply
238,245.10x = 328,778.60 × 130,822.09 - Step 4: Simplify right side
238,245.10x = 43,011,502,123.22 - Step 5: Solve for x
x = 43,011,502,123.22/238,245.10 - Step 6: Final answer
x = 180,534.68
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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.