Finding the Fourth Proportional to 353,285.21, 487,533.82 and 198,215.09
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Solution
The fourth proportional to 353,285.21, 487,533.82 and 198,215.09 is: 273,536.96
Step by Step Solution
- Step 1: Write the proportion equation
353,285.21 : 487,533.82 = 198,215.09 : x - Step 2: Convert to fraction form
353,285.21/487,533.82 = 198,215.09/x - Step 3: Cross multiply
353,285.21x = 487,533.82 × 198,215.09 - Step 4: Simplify right side
353,285.21x = 96,636,560,009.34 - Step 5: Solve for x
x = 96,636,560,009.34/353,285.21 - Step 6: Final answer
x = 273,536.96
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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.