Finding the Fourth Proportional to 303,497.30, 455,428.20 and 125,985.80
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Solution
The fourth proportional to 303,497.30, 455,428.20 and 125,985.80 is: 189,054.35
Step by Step Solution
- Step 1: Write the proportion equation
303,497.30 : 455,428.20 = 125,985.80 : x - Step 2: Convert to fraction form
303,497.30/455,428.20 = 125,985.80/x - Step 3: Cross multiply
303,497.30x = 455,428.20 × 125,985.80 - Step 4: Simplify right side
303,497.30x = 57,377,486,119.56 - Step 5: Solve for x
x = 57,377,486,119.56/303,497.30 - Step 6: Final answer
x = 189,054.35
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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.