Finding the Fourth Proportional to 395,319.69, 545,534.55 and 214,030.14
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Solution
The fourth proportional to 395,319.69, 545,534.55 and 214,030.14 is: 295,358.02
Step by Step Solution
- Step 1: Write the proportion equation
395,319.69 : 545,534.55 = 214,030.14 : x - Step 2: Convert to fraction form
395,319.69/545,534.55 = 214,030.14/x - Step 3: Cross multiply
395,319.69x = 545,534.55 × 214,030.14 - Step 4: Simplify right side
395,319.69x = 116,760,837,475.17 - Step 5: Solve for x
x = 116,760,837,475.17/395,319.69 - Step 6: Final answer
x = 295,358.02
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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.