Finding the Fourth Proportional to 192,980.06, 265,979.99 and 128,333.74
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Solution
The fourth proportional to 192,980.06, 265,979.99 and 128,333.74 is: 176,879.45
Step by Step Solution
- Step 1: Write the proportion equation
192,980.06 : 265,979.99 = 128,333.74 : x - Step 2: Convert to fraction form
192,980.06/265,979.99 = 128,333.74/x - Step 3: Cross multiply
192,980.06x = 265,979.99 × 128,333.74 - Step 4: Simplify right side
192,980.06x = 34,134,205,575.24 - Step 5: Solve for x
x = 34,134,205,575.24/192,980.06 - Step 6: Final answer
x = 176,879.45
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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.