Finding the Fourth Proportional to 396,567.76, 547,259.68 and 215,275.80
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Solution
The fourth proportional to 396,567.76, 547,259.68 and 215,275.80 is: 297,078.53
Step by Step Solution
- Step 1: Write the proportion equation
396,567.76 : 547,259.68 = 215,275.80 : x - Step 2: Convert to fraction form
396,567.76/547,259.68 = 215,275.80/x - Step 3: Cross multiply
396,567.76x = 547,259.68 × 215,275.80 - Step 4: Simplify right side
396,567.76x = 117,811,765,419.74 - Step 5: Solve for x
x = 117,811,765,419.74/396,567.76 - Step 6: Final answer
x = 297,078.53
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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.