Finding the Fourth Proportional to 199,620.60, 299,281.14 and 120,718.68
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Solution
The fourth proportional to 199,620.60, 299,281.14 and 120,718.68 is: 180,987.45
Step by Step Solution
- Step 1: Write the proportion equation
199,620.60 : 299,281.14 = 120,718.68 : x - Step 2: Convert to fraction form
199,620.60/299,281.14 = 120,718.68/x - Step 3: Cross multiply
199,620.60x = 299,281.14 × 120,718.68 - Step 4: Simplify right side
199,620.60x = 36,128,824,169.70 - Step 5: Solve for x
x = 36,128,824,169.70/199,620.60 - Step 6: Final answer
x = 180,987.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.