Finding the Fourth Proportional to 381,474.36, 526,373.10 and 220,303.80
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Solution
The fourth proportional to 381,474.36, 526,373.10 and 220,303.80 is: 303,983.72
Step by Step Solution
- Step 1: Write the proportion equation
381,474.36 : 526,373.10 = 220,303.80 : x - Step 2: Convert to fraction form
381,474.36/526,373.10 = 220,303.80/x - Step 3: Cross multiply
381,474.36x = 526,373.10 × 220,303.80 - Step 4: Simplify right side
381,474.36x = 115,961,994,147.78 - Step 5: Solve for x
x = 115,961,994,147.78/381,474.36 - Step 6: Final answer
x = 303,983.72
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1.5x scale
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.