Finding the Fourth Proportional to 303,386.40, 455,079.60 and 299,449.80
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Solution
The fourth proportional to 303,386.40, 455,079.60 and 299,449.80 is: 449,174.70
Step by Step Solution
- Step 1: Write the proportion equation
303,386.40 : 455,079.60 = 299,449.80 : x - Step 2: Convert to fraction form
303,386.40/455,079.60 = 299,449.80/x - Step 3: Cross multiply
303,386.40x = 455,079.60 × 299,449.80 - Step 4: Simplify right side
303,386.40x = 136,273,495,204.08 - Step 5: Solve for x
x = 136,273,495,204.08/303,386.40 - Step 6: Final answer
x = 449,174.70
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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.