Finding the Fourth Proportional to 305,867.70, 458,801.55 and 84,251.70
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Solution
The fourth proportional to 305,867.70, 458,801.55 and 84,251.70 is: 126,377.55
Step by Step Solution
- Step 1: Write the proportion equation
305,867.70 : 458,801.55 = 84,251.70 : x - Step 2: Convert to fraction form
305,867.70/458,801.55 = 84,251.70/x - Step 3: Cross multiply
305,867.70x = 458,801.55 × 84,251.70 - Step 4: Simplify right side
305,867.70x = 38,654,810,550.14 - Step 5: Solve for x
x = 38,654,810,550.14/305,867.70 - Step 6: Final answer
x = 126,377.55
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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.