Finding the Fourth Proportional to 240,359.63, 331,695.65 and 138,347.82
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Solution
The fourth proportional to 240,359.63, 331,695.65 and 138,347.82 is: 190,919.62
Step by Step Solution
- Step 1: Write the proportion equation
240,359.63 : 331,695.65 = 138,347.82 : x - Step 2: Convert to fraction form
240,359.63/331,695.65 = 138,347.82/x - Step 3: Cross multiply
240,359.63x = 331,695.65 × 138,347.82 - Step 4: Simplify right side
240,359.63x = 45,889,369,389.24 - Step 5: Solve for x
x = 45,889,369,389.24/240,359.63 - Step 6: Final answer
x = 190,919.62
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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.