Finding the Fourth Proportional to 302,686.44, 453,871.94 and 112,990.80
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Solution
The fourth proportional to 302,686.44, 453,871.94 and 112,990.80 is: 169,427.32
Step by Step Solution
- Step 1: Write the proportion equation
302,686.44 : 453,871.94 = 112,990.80 : x - Step 2: Convert to fraction form
302,686.44/453,871.94 = 112,990.80/x - Step 3: Cross multiply
302,686.44x = 453,871.94 × 112,990.80 - Step 4: Simplify right side
302,686.44x = 51,283,352,817.76 - Step 5: Solve for x
x = 51,283,352,817.76/302,686.44 - Step 6: Final answer
x = 169,427.32
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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.