Finding the Fourth Proportional to 360,422.80, 497,357.28 and 199,279.84
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Solution
The fourth proportional to 360,422.80, 497,357.28 and 199,279.84 is: 274,991.70
Step by Step Solution
- Step 1: Write the proportion equation
360,422.80 : 497,357.28 = 199,279.84 : x - Step 2: Convert to fraction form
360,422.80/497,357.28 = 199,279.84/x - Step 3: Cross multiply
360,422.80x = 497,357.28 × 199,279.84 - Step 4: Simplify right side
360,422.80x = 99,113,279,181.24 - Step 5: Solve for x
x = 99,113,279,181.24/360,422.80 - Step 6: Final answer
x = 274,991.70
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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.