Finding the Fourth Proportional to 239,345.40, 330,297.12 and 130,450.96
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Solution
The fourth proportional to 239,345.40, 330,297.12 and 130,450.96 is: 180,022.58
Step by Step Solution
- Step 1: Write the proportion equation
239,345.40 : 330,297.12 = 130,450.96 : x - Step 2: Convert to fraction form
239,345.40/330,297.12 = 130,450.96/x - Step 3: Cross multiply
239,345.40x = 330,297.12 × 130,450.96 - Step 4: Simplify right side
239,345.40x = 43,087,576,389.24 - Step 5: Solve for x
x = 43,087,576,389.24/239,345.40 - Step 6: Final answer
x = 180,022.58
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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.