Finding the Fourth Proportional to 399,395.39, 599,177.26 and 129,502.49
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Solution
The fourth proportional to 399,395.39, 599,177.26 and 129,502.49 is: 194,281.03
Step by Step Solution
- Step 1: Write the proportion equation
399,395.39 : 599,177.26 = 129,502.49 : x - Step 2: Convert to fraction form
399,395.39/599,177.26 = 129,502.49/x - Step 3: Cross multiply
399,395.39x = 599,177.26 × 129,502.49 - Step 4: Simplify right side
399,395.39x = 77,594,948,295.56 - Step 5: Solve for x
x = 77,594,948,295.56/399,395.39 - Step 6: Final answer
x = 194,281.03
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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.