Finding the Fourth Proportional to 516,877.12, 775,315.07 and 161,918.79
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Solution
The fourth proportional to 516,877.12, 775,315.07 and 161,918.79 is: 242,877.99
Step by Step Solution
- Step 1: Write the proportion equation
516,877.12 : 775,315.07 = 161,918.79 : x - Step 2: Convert to fraction form
516,877.12/775,315.07 = 161,918.79/x - Step 3: Cross multiply
516,877.12x = 775,315.07 × 161,918.79 - Step 4: Simplify right side
516,877.12x = 125,538,074,531.39 - Step 5: Solve for x
x = 125,538,074,531.39/516,877.12 - Step 6: Final answer
x = 242,877.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.