Finding the Fourth Proportional to 395,126.30, 545,215.58 and 239,996.84
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Solution
The fourth proportional to 395,126.30, 545,215.58 and 239,996.84 is: 331,159.98
Step by Step Solution
- Step 1: Write the proportion equation
395,126.30 : 545,215.58 = 239,996.84 : x - Step 2: Convert to fraction form
395,126.30/545,215.58 = 239,996.84/x - Step 3: Cross multiply
395,126.30x = 545,215.58 × 239,996.84 - Step 4: Simplify right side
395,126.30x = 130,850,016,318.77 - Step 5: Solve for x
x = 130,850,016,318.77/395,126.30 - Step 6: Final answer
x = 331,159.98
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1.5x scale
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.