Finding the Fourth Proportional to 221,574.69, 305,762.04 and 130,934.88
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Solution
The fourth proportional to 221,574.69, 305,762.04 and 130,934.88 is: 180,683.62
Step by Step Solution
- Step 1: Write the proportion equation
221,574.69 : 305,762.04 = 130,934.88 : x - Step 2: Convert to fraction form
221,574.69/305,762.04 = 130,934.88/x - Step 3: Cross multiply
221,574.69x = 305,762.04 × 130,934.88 - Step 4: Simplify right side
221,574.69x = 40,034,916,015.96 - Step 5: Solve for x
x = 40,034,916,015.96/221,574.69 - Step 6: Final answer
x = 180,683.62
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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.