Finding the Fourth Proportional to 299,246.70, 448,890.30 and 121,756.80
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Solution
The fourth proportional to 299,246.70, 448,890.30 and 121,756.80 is: 182,643.44
Step by Step Solution
- Step 1: Write the proportion equation
299,246.70 : 448,890.30 = 121,756.80 : x - Step 2: Convert to fraction form
299,246.70/448,890.30 = 121,756.80/x - Step 3: Cross multiply
299,246.70x = 448,890.30 × 121,756.80 - Step 4: Simplify right side
299,246.70x = 54,655,446,479.04 - Step 5: Solve for x
x = 54,655,446,479.04/299,246.70 - Step 6: Final answer
x = 182,643.44
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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.