Finding the Fourth Proportional to 307,511.40, 461,267.10 and 305,437.80
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Solution
The fourth proportional to 307,511.40, 461,267.10 and 305,437.80 is: 458,156.70
Step by Step Solution
- Step 1: Write the proportion equation
307,511.40 : 461,267.10 = 305,437.80 : x - Step 2: Convert to fraction form
307,511.40/461,267.10 = 305,437.80/x - Step 3: Cross multiply
307,511.40x = 461,267.10 × 305,437.80 - Step 4: Simplify right side
307,511.40x = 140,888,408,236.38 - Step 5: Solve for x
x = 140,888,408,236.38/307,511.40 - Step 6: Final answer
x = 458,156.70
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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.