Finding the Fourth Proportional to 235,927.80, 325,582.56 and 128,498.40
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Solution
The fourth proportional to 235,927.80, 325,582.56 and 128,498.40 is: 177,328.99
Step by Step Solution
- Step 1: Write the proportion equation
235,927.80 : 325,582.56 = 128,498.40 : x - Step 2: Convert to fraction form
235,927.80/325,582.56 = 128,498.40/x - Step 3: Cross multiply
235,927.80x = 325,582.56 × 128,498.40 - Step 4: Simplify right side
235,927.80x = 41,836,838,027.90 - Step 5: Solve for x
x = 41,836,838,027.90/235,927.80 - Step 6: Final answer
x = 177,328.99
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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.