Finding the Fourth Proportional to 342,129.30, 472,202.51 and 198,909.96
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Solution
The fourth proportional to 342,129.30, 472,202.51 and 198,909.96 is: 274,532.99
Step by Step Solution
- Step 1: Write the proportion equation
342,129.30 : 472,202.51 = 198,909.96 : x - Step 2: Convert to fraction form
342,129.30/472,202.51 = 198,909.96/x - Step 3: Cross multiply
342,129.30x = 472,202.51 × 198,909.96 - Step 4: Simplify right side
342,129.30x = 93,925,781,381.45 - Step 5: Solve for x
x = 93,925,781,381.45/342,129.30 - Step 6: Final answer
x = 274,532.99
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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.