Finding the Fourth Proportional to 356,243.84, 491,949.48 and 229,140.08
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Solution
The fourth proportional to 356,243.84, 491,949.48 and 229,140.08 is: 316,427.49
Step by Step Solution
- Step 1: Write the proportion equation
356,243.84 : 491,949.48 = 229,140.08 : x - Step 2: Convert to fraction form
356,243.84/491,949.48 = 229,140.08/x - Step 3: Cross multiply
356,243.84x = 491,949.48 × 229,140.08 - Step 4: Simplify right side
356,243.84x = 112,725,343,203.16 - Step 5: Solve for x
x = 112,725,343,203.16/356,243.84 - Step 6: Final answer
x = 316,427.49
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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.