Finding the Fourth Proportional to 238,326.96, 328,890.08 and 129,430.53
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Solution
The fourth proportional to 238,326.96, 328,890.08 and 129,430.53 is: 178,613.52
Step by Step Solution
- Step 1: Write the proportion equation
238,326.96 : 328,890.08 = 129,430.53 : x - Step 2: Convert to fraction form
238,326.96/328,890.08 = 129,430.53/x - Step 3: Cross multiply
238,326.96x = 328,890.08 × 129,430.53 - Step 4: Simplify right side
238,326.96x = 42,568,416,718.99 - Step 5: Solve for x
x = 42,568,416,718.99/238,326.96 - Step 6: Final answer
x = 178,613.52
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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.