Finding the Fourth Proportional to 471,853.69, 651,154.76 and 256,993.09
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Solution
The fourth proportional to 471,853.69, 651,154.76 and 256,993.09 is: 354,648.65
Step by Step Solution
- Step 1: Write the proportion equation
471,853.69 : 651,154.76 = 256,993.09 : x - Step 2: Convert to fraction form
471,853.69/651,154.76 = 256,993.09/x - Step 3: Cross multiply
471,853.69x = 651,154.76 × 256,993.09 - Step 4: Simplify right side
471,853.69x = 167,342,272,555.64 - Step 5: Solve for x
x = 167,342,272,555.64/471,853.69 - Step 6: Final answer
x = 354,648.65
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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.