Finding the Fourth Proportional to 221,807.36, 306,007.36 and 136,776.80
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Solution
The fourth proportional to 221,807.36, 306,007.36 and 136,776.80 is: 188,698.46
Step by Step Solution
- Step 1: Write the proportion equation
221,807.36 : 306,007.36 = 136,776.80 : x - Step 2: Convert to fraction form
221,807.36/306,007.36 = 136,776.80/x - Step 3: Cross multiply
221,807.36x = 306,007.36 × 136,776.80 - Step 4: Simplify right side
221,807.36x = 41,854,707,477.25 - Step 5: Solve for x
x = 41,854,707,477.25/221,807.36 - Step 6: Final answer
x = 188,698.46
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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.