Finding the Fourth Proportional to 320,060.64, 441,645.84 and 176,812.08
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Solution
The fourth proportional to 320,060.64, 441,645.84 and 176,812.08 is: 243,979.76
Step by Step Solution
- Step 1: Write the proportion equation
320,060.64 : 441,645.84 = 176,812.08 : x - Step 2: Convert to fraction form
320,060.64/441,645.84 = 176,812.08/x - Step 3: Cross multiply
320,060.64x = 441,645.84 × 176,812.08 - Step 4: Simplify right side
320,060.64x = 78,088,319,593.75 - Step 5: Solve for x
x = 78,088,319,593.75/320,060.64 - Step 6: Final answer
x = 243,979.76
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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.