Finding the Fourth Proportional to 307,511.40, 461,267.10 and 218,281.80
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Solution
The fourth proportional to 307,511.40, 461,267.10 and 218,281.80 is: 327,422.70
Step by Step Solution
- Step 1: Write the proportion equation
307,511.40 : 461,267.10 = 218,281.80 : x - Step 2: Convert to fraction form
307,511.40/461,267.10 = 218,281.80/x - Step 3: Cross multiply
307,511.40x = 461,267.10 × 218,281.80 - Step 4: Simplify right side
307,511.40x = 100,686,212,868.78 - Step 5: Solve for x
x = 100,686,212,868.78/307,511.40 - Step 6: Final answer
x = 327,422.70
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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.