Finding the Fourth Proportional to 221,463.91, 332,239.58 and 81,223.75
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Solution
The fourth proportional to 221,463.91, 332,239.58 and 81,223.75 is: 121,851.65
Step by Step Solution
- Step 1: Write the proportion equation
221,463.91 : 332,239.58 = 81,223.75 : x - Step 2: Convert to fraction form
221,463.91/332,239.58 = 81,223.75/x - Step 3: Cross multiply
221,463.91x = 332,239.58 × 81,223.75 - Step 4: Simplify right side
221,463.91x = 26,985,742,518.71 - Step 5: Solve for x
x = 26,985,742,518.71/221,463.91 - Step 6: Final answer
x = 121,851.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.