Finding the Fourth Proportional to 247,391.87, 341,432.93 and 138,537.65
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Solution
The fourth proportional to 247,391.87, 341,432.93 and 138,537.65 is: 191,199.95
Step by Step Solution
- Step 1: Write the proportion equation
247,391.87 : 341,432.93 = 138,537.65 : x - Step 2: Convert to fraction form
247,391.87/341,432.93 = 138,537.65/x - Step 3: Cross multiply
247,391.87x = 341,432.93 × 138,537.65 - Step 4: Simplify right side
247,391.87x = 47,301,313,354.96 - Step 5: Solve for x
x = 47,301,313,354.96/247,391.87 - Step 6: Final answer
x = 191,199.95
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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.