Finding the Fourth Proportional to 402,184.86, 603,279.12 and 135,946.80
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Solution
The fourth proportional to 402,184.86, 603,279.12 and 135,946.80 is: 203,920.82
Step by Step Solution
- Step 1: Write the proportion equation
402,184.86 : 603,279.12 = 135,946.80 : x - Step 2: Convert to fraction form
402,184.86/603,279.12 = 135,946.80/x - Step 3: Cross multiply
402,184.86x = 603,279.12 × 135,946.80 - Step 4: Simplify right side
402,184.86x = 82,013,865,870.82 - Step 5: Solve for x
x = 82,013,865,870.82/402,184.86 - Step 6: Final answer
x = 203,920.82
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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.