Finding the Fourth Proportional to 219,474.80, 328,985.40 and 119,423.60
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Solution
The fourth proportional to 219,474.80, 328,985.40 and 119,423.60 is: 179,011.99
Step by Step Solution
- Step 1: Write the proportion equation
219,474.80 : 328,985.40 = 119,423.60 : x - Step 2: Convert to fraction form
219,474.80/328,985.40 = 119,423.60/x - Step 3: Cross multiply
219,474.80x = 328,985.40 × 119,423.60 - Step 4: Simplify right side
219,474.80x = 39,288,620,815.44 - Step 5: Solve for x
x = 39,288,620,815.44/219,474.80 - Step 6: Final answer
x = 179,011.99
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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.