Finding the Fourth Proportional to 239,239.21, 330,197.88 and 137,333.53
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Solution
The fourth proportional to 239,239.21, 330,197.88 and 137,333.53 is: 189,547.69
Step by Step Solution
- Step 1: Write the proportion equation
239,239.21 : 330,197.88 = 137,333.53 : x - Step 2: Convert to fraction form
239,239.21/330,197.88 = 137,333.53/x - Step 3: Cross multiply
239,239.21x = 330,197.88 × 137,333.53 - Step 4: Simplify right side
239,239.21x = 45,347,240,458.92 - Step 5: Solve for x
x = 45,347,240,458.92/239,239.21 - Step 6: Final answer
x = 189,547.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.