Finding the Fourth Proportional to 239,556.12, 330,586.80 and 137,588.18
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Solution
The fourth proportional to 239,556.12, 330,586.80 and 137,588.18 is: 189,871.31
Step by Step Solution
- Step 1: Write the proportion equation
239,556.12 : 330,586.80 = 137,588.18 : x - Step 2: Convert to fraction form
239,556.12/330,586.80 = 137,588.18/x - Step 3: Cross multiply
239,556.12x = 330,586.80 × 137,588.18 - Step 4: Simplify right side
239,556.12x = 45,484,834,491.09 - Step 5: Solve for x
x = 45,484,834,491.09/239,556.12 - Step 6: Final answer
x = 189,871.31
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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.