Finding the Fourth Proportional to 213,136.19, 294,135.06 and 116,345.78
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Solution
The fourth proportional to 213,136.19, 294,135.06 and 116,345.78 is: 160,561.07
Step by Step Solution
- Step 1: Write the proportion equation
213,136.19 : 294,135.06 = 116,345.78 : x - Step 2: Convert to fraction form
213,136.19/294,135.06 = 116,345.78/x - Step 3: Cross multiply
213,136.19x = 294,135.06 × 116,345.78 - Step 4: Simplify right side
213,136.19x = 34,221,372,981.05 - Step 5: Solve for x
x = 34,221,372,981.05/213,136.19 - Step 6: Final answer
x = 160,561.07
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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.