Finding the Fourth Proportional to 202,854.40, 304,216.80 and 84,497.20
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Solution
The fourth proportional to 202,854.40, 304,216.80 and 84,497.20 is: 126,718.81
Step by Step Solution
- Step 1: Write the proportion equation
202,854.40 : 304,216.80 = 84,497.20 : x - Step 2: Convert to fraction form
202,854.40/304,216.80 = 84,497.20/x - Step 3: Cross multiply
202,854.40x = 304,216.80 × 84,497.20 - Step 4: Simplify right side
202,854.40x = 25,705,467,792.96 - Step 5: Solve for x
x = 25,705,467,792.96/202,854.40 - Step 6: Final answer
x = 126,718.81
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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.