Finding the Fourth Proportional to 383,430.36, 529,134.48 and 213,660.84
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Solution
The fourth proportional to 383,430.36, 529,134.48 and 213,660.84 is: 294,852.28
Step by Step Solution
- Step 1: Write the proportion equation
383,430.36 : 529,134.48 = 213,660.84 : x - Step 2: Convert to fraction form
383,430.36/529,134.48 = 213,660.84/x - Step 3: Cross multiply
383,430.36x = 529,134.48 × 213,660.84 - Step 4: Simplify right side
383,430.36x = 113,055,317,469.76 - Step 5: Solve for x
x = 113,055,317,469.76/383,430.36 - Step 6: Final answer
x = 294,852.28
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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.