Finding the Fourth Proportional to 320,702.79, 480,976.43 and 133,612.23
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Solution
The fourth proportional to 320,702.79, 480,976.43 and 133,612.23 is: 200,385.95
Step by Step Solution
- Step 1: Write the proportion equation
320,702.79 : 480,976.43 = 133,612.23 : x - Step 2: Convert to fraction form
320,702.79/480,976.43 = 133,612.23/x - Step 3: Cross multiply
320,702.79x = 480,976.43 × 133,612.23 - Step 4: Simplify right side
320,702.79x = 64,264,332,721.68 - Step 5: Solve for x
x = 64,264,332,721.68/320,702.79 - Step 6: Final answer
x = 200,385.95
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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.