Finding the Fourth Proportional to 245,337.74, 338,601.94 and 137,916.62
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Solution
The fourth proportional to 245,337.74, 338,601.94 and 137,916.62 is: 190,345.09
Step by Step Solution
- Step 1: Write the proportion equation
245,337.74 : 338,601.94 = 137,916.62 : x - Step 2: Convert to fraction form
245,337.74/338,601.94 = 137,916.62/x - Step 3: Cross multiply
245,337.74x = 338,601.94 × 137,916.62 - Step 4: Simplify right side
245,337.74x = 46,698,834,400.66 - Step 5: Solve for x
x = 46,698,834,400.66/245,337.74 - Step 6: Final answer
x = 190,345.09
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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.