Finding the Fourth Proportional to 398,656.29, 550,278.99 and 237,561.87
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Solution
The fourth proportional to 398,656.29, 550,278.99 and 237,561.87 is: 327,914.82
Step by Step Solution
- Step 1: Write the proportion equation
398,656.29 : 550,278.99 = 237,561.87 : x - Step 2: Convert to fraction form
398,656.29/550,278.99 = 237,561.87/x - Step 3: Cross multiply
398,656.29x = 550,278.99 × 237,561.87 - Step 4: Simplify right side
398,656.29x = 130,725,305,886.11 - Step 5: Solve for x
x = 130,725,305,886.11/398,656.29 - Step 6: Final answer
x = 327,914.82
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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.