Finding the Fourth Proportional to 398,092.20, 549,412.62 and 236,947.80
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Solution
The fourth proportional to 398,092.20, 549,412.62 and 236,947.80 is: 327,014.98
Step by Step Solution
- Step 1: Write the proportion equation
398,092.20 : 549,412.62 = 236,947.80 : x - Step 2: Convert to fraction form
398,092.20/549,412.62 = 236,947.80/x - Step 3: Cross multiply
398,092.20x = 549,412.62 × 236,947.80 - Step 4: Simplify right side
398,092.20x = 130,182,111,601.24 - Step 5: Solve for x
x = 130,182,111,601.24/398,092.20 - Step 6: Final answer
x = 327,014.98
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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.