Finding the Fourth Proportional to 395,265.35, 545,466.36 and 213,977.28
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Solution
The fourth proportional to 395,265.35, 545,466.36 and 213,977.28 is: 295,288.74
Step by Step Solution
- Step 1: Write the proportion equation
395,265.35 : 545,466.36 = 213,977.28 : x - Step 2: Convert to fraction form
395,265.35/545,466.36 = 213,977.28/x - Step 3: Cross multiply
395,265.35x = 545,466.36 × 213,977.28 - Step 4: Simplify right side
395,265.35x = 116,717,406,801.22 - Step 5: Solve for x
x = 116,717,406,801.22/395,265.35 - Step 6: Final answer
x = 295,288.74
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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.