Finding the Fourth Proportional to 499,097.80, 748,646.70 and 199,721.80
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Solution
The fourth proportional to 499,097.80, 748,646.70 and 199,721.80 is: 299,582.70
Step by Step Solution
- Step 1: Write the proportion equation
499,097.80 : 748,646.70 = 199,721.80 : x - Step 2: Convert to fraction form
499,097.80/748,646.70 = 199,721.80/x - Step 3: Cross multiply
499,097.80x = 748,646.70 × 199,721.80 - Step 4: Simplify right side
499,097.80x = 149,521,066,488.06 - Step 5: Solve for x
x = 149,521,066,488.06/499,097.80 - Step 6: Final answer
x = 299,582.70
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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.