Finding the Fourth Proportional to 319,460.76, 440,857.08 and 176,218.74
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Solution
The fourth proportional to 319,460.76, 440,857.08 and 176,218.74 is: 243,182.54
Step by Step Solution
- Step 1: Write the proportion equation
319,460.76 : 440,857.08 = 176,218.74 : x - Step 2: Convert to fraction form
319,460.76/440,857.08 = 176,218.74/x - Step 3: Cross multiply
319,460.76x = 440,857.08 × 176,218.74 - Step 4: Simplify right side
319,460.76x = 77,687,279,157.68 - Step 5: Solve for x
x = 77,687,279,157.68/319,460.76 - Step 6: Final answer
x = 243,182.54
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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.