Finding the Fourth Proportional to 259,112.30, 387,790.56 and 159,335.68
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Solution
The fourth proportional to 259,112.30, 387,790.56 and 159,335.68 is: 238,463.68
Step by Step Solution
- Step 1: Write the proportion equation
259,112.30 : 387,790.56 = 159,335.68 : x - Step 2: Convert to fraction form
259,112.30/387,790.56 = 159,335.68/x - Step 3: Cross multiply
259,112.30x = 387,790.56 × 159,335.68 - Step 4: Simplify right side
259,112.30x = 61,788,872,575.18 - Step 5: Solve for x
x = 61,788,872,575.18/259,112.30 - Step 6: Final answer
x = 238,463.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.