Finding the Fourth Proportional to 342,442.98, 472,562.18 and 189,477.18
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Solution
The fourth proportional to 342,442.98, 472,562.18 and 189,477.18 is: 261,473.46
Step by Step Solution
- Step 1: Write the proportion equation
342,442.98 : 472,562.18 = 189,477.18 : x - Step 2: Convert to fraction form
342,442.98/472,562.18 = 189,477.18/x - Step 3: Cross multiply
342,442.98x = 472,562.18 × 189,477.18 - Step 4: Simplify right side
342,442.98x = 89,539,749,241.05 - Step 5: Solve for x
x = 89,539,749,241.05/342,442.98 - Step 6: Final answer
x = 261,473.46
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1.5x scale
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.