Finding the Fourth Proportional to 303,576.20, 455,364.30 and 214,929.80
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Solution
The fourth proportional to 303,576.20, 455,364.30 and 214,929.80 is: 322,394.70
Step by Step Solution
- Step 1: Write the proportion equation
303,576.20 : 455,364.30 = 214,929.80 : x - Step 2: Convert to fraction form
303,576.20/455,364.30 = 214,929.80/x - Step 3: Cross multiply
303,576.20x = 455,364.30 × 214,929.80 - Step 4: Simplify right side
303,576.20x = 97,871,357,926.14 - Step 5: Solve for x
x = 97,871,357,926.14/303,576.20 - Step 6: Final answer
x = 322,394.70
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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.