Finding the Fourth Proportional to 236,605.16, 326,516.22 and 129,177.65
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Solution
The fourth proportional to 236,605.16, 326,516.22 and 129,177.65 is: 178,265.75
Step by Step Solution
- Step 1: Write the proportion equation
236,605.16 : 326,516.22 = 129,177.65 : x - Step 2: Convert to fraction form
236,605.16/326,516.22 = 129,177.65/x - Step 3: Cross multiply
236,605.16x = 326,516.22 × 129,177.65 - Step 4: Simplify right side
236,605.16x = 42,178,596,353.90 - Step 5: Solve for x
x = 42,178,596,353.90/236,605.16 - Step 6: Final answer
x = 178,265.75
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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.