Finding the Fourth Proportional to 642,972.70, 964,167.45 and 243,480.70
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Solution
The fourth proportional to 642,972.70, 964,167.45 and 243,480.70 is: 365,110.63
Step by Step Solution
- Step 1: Write the proportion equation
642,972.70 : 964,167.45 = 243,480.70 : x - Step 2: Convert to fraction form
642,972.70/964,167.45 = 243,480.70/x - Step 3: Cross multiply
642,972.70x = 964,167.45 × 243,480.70 - Step 4: Simplify right side
642,972.70x = 234,756,165,643.22 - Step 5: Solve for x
x = 234,756,165,643.22/642,972.70 - Step 6: Final answer
x = 365,110.63
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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.