Finding the Fourth Proportional to 450,161.55, 621,306.05 and 289,217.79
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Solution
The fourth proportional to 450,161.55, 621,306.05 and 289,217.79 is: 399,173.94
Step by Step Solution
- Step 1: Write the proportion equation
450,161.55 : 621,306.05 = 289,217.79 : x - Step 2: Convert to fraction form
450,161.55/621,306.05 = 289,217.79/x - Step 3: Cross multiply
450,161.55x = 621,306.05 × 289,217.79 - Step 4: Simplify right side
450,161.55x = 179,692,761,248.54 - Step 5: Solve for x
x = 179,692,761,248.54/450,161.55 - Step 6: Final answer
x = 399,173.94
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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.