Finding the Fourth Proportional to 235,987.44, 354,058.92 and 86,273.52
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Solution
The fourth proportional to 235,987.44, 354,058.92 and 86,273.52 is: 129,438.71
Step by Step Solution
- Step 1: Write the proportion equation
235,987.44 : 354,058.92 = 86,273.52 : x - Step 2: Convert to fraction form
235,987.44/354,058.92 = 86,273.52/x - Step 3: Cross multiply
235,987.44x = 354,058.92 × 86,273.52 - Step 4: Simplify right side
235,987.44x = 30,545,909,315.80 - Step 5: Solve for x
x = 30,545,909,315.80/235,987.44 - Step 6: Final answer
x = 129,438.71
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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.