Finding the Fourth Proportional to 219,219.80, 328,829.70 and 101,121.80
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Solution
The fourth proportional to 219,219.80, 328,829.70 and 101,121.80 is: 151,682.70
Step by Step Solution
- Step 1: Write the proportion equation
219,219.80 : 328,829.70 = 101,121.80 : x - Step 2: Convert to fraction form
219,219.80/328,829.70 = 101,121.80/x - Step 3: Cross multiply
219,219.80x = 328,829.70 × 101,121.80 - Step 4: Simplify right side
219,219.80x = 33,251,851,157.46 - Step 5: Solve for x
x = 33,251,851,157.46/219,219.80 - Step 6: Final answer
x = 151,682.70
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1.5x scale
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.