Finding the Fourth Proportional to 402,214.40, 603,661.80 and 165,726.80
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Solution
The fourth proportional to 402,214.40, 603,661.80 and 165,726.80 is: 248,730.37
Step by Step Solution
- Step 1: Write the proportion equation
402,214.40 : 603,661.80 = 165,726.80 : x - Step 2: Convert to fraction form
402,214.40/603,661.80 = 165,726.80/x - Step 3: Cross multiply
402,214.40x = 603,661.80 × 165,726.80 - Step 4: Simplify right side
402,214.40x = 100,042,938,396.24 - Step 5: Solve for x
x = 100,042,938,396.24/402,214.40 - Step 6: Final answer
x = 248,730.37
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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.