Finding the Fourth Proportional to 199,590.80, 299,386.20 and 81,201.20
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Solution
The fourth proportional to 199,590.80, 299,386.20 and 81,201.20 is: 121,801.80
Step by Step Solution
- Step 1: Write the proportion equation
199,590.80 : 299,386.20 = 81,201.20 : x - Step 2: Convert to fraction form
199,590.80/299,386.20 = 81,201.20/x - Step 3: Cross multiply
199,590.80x = 299,386.20 × 81,201.20 - Step 4: Simplify right side
199,590.80x = 24,310,518,703.44 - Step 5: Solve for x
x = 24,310,518,703.44/199,590.80 - Step 6: Final answer
x = 121,801.80
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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.