Finding the Fourth Proportional to 398,193.57, 549,489.40 and 232,636.88
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Solution
The fourth proportional to 398,193.57, 549,489.40 and 232,636.88 is: 321,028.54
Step by Step Solution
- Step 1: Write the proportion equation
398,193.57 : 549,489.40 = 232,636.88 : x - Step 2: Convert to fraction form
398,193.57/549,489.40 = 232,636.88/x - Step 3: Cross multiply
398,193.57x = 549,489.40 × 232,636.88 - Step 4: Simplify right side
398,193.57x = 127,831,498,445.89 - Step 5: Solve for x
x = 127,831,498,445.89/398,193.57 - Step 6: Final answer
x = 321,028.54
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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.