Finding the Fourth Proportional to 245,559.52, 338,868.66 and 138,129.53
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Solution
The fourth proportional to 245,559.52, 338,868.66 and 138,129.53 is: 190,616.80
Step by Step Solution
- Step 1: Write the proportion equation
245,559.52 : 338,868.66 = 138,129.53 : x - Step 2: Convert to fraction form
245,559.52/338,868.66 = 138,129.53/x - Step 3: Cross multiply
245,559.52x = 338,868.66 × 138,129.53 - Step 4: Simplify right side
245,559.52x = 46,807,768,737.53 - Step 5: Solve for x
x = 46,807,768,737.53/245,559.52 - Step 6: Final answer
x = 190,616.80
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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.