Finding the Fourth Proportional to 235,862.12, 325,485.06 and 128,433.44
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Solution
The fourth proportional to 235,862.12, 325,485.06 and 128,433.44 is: 177,235.61
Step by Step Solution
- Step 1: Write the proportion equation
235,862.12 : 325,485.06 = 128,433.44 : x - Step 2: Convert to fraction form
235,862.12/325,485.06 = 128,433.44/x - Step 3: Cross multiply
235,862.12x = 325,485.06 × 128,433.44 - Step 4: Simplify right side
235,862.12x = 41,803,165,924.41 - Step 5: Solve for x
x = 41,803,165,924.41/235,862.12 - Step 6: Final answer
x = 177,235.61
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1.5x scale
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.