Finding the Fourth Proportional to 221,858.70, 332,937.79 and 86,906.03
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Solution
The fourth proportional to 221,858.70, 332,937.79 and 86,906.03 is: 130,417.70
Step by Step Solution
- Step 1: Write the proportion equation
221,858.70 : 332,937.79 = 86,906.03 : x - Step 2: Convert to fraction form
221,858.70/332,937.79 = 86,906.03/x - Step 3: Cross multiply
221,858.70x = 332,937.79 × 86,906.03 - Step 4: Simplify right side
221,858.70x = 28,934,301,565.87 - Step 5: Solve for x
x = 28,934,301,565.87/221,858.70 - Step 6: Final answer
x = 130,417.70
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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.