Finding the Fourth Proportional to 245,029.61, 338,177.48 and 149,591.76
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Solution
The fourth proportional to 245,029.61, 338,177.48 and 149,591.76 is: 206,458.99
Step by Step Solution
- Step 1: Write the proportion equation
245,029.61 : 338,177.48 = 149,591.76 : x - Step 2: Convert to fraction form
245,029.61/338,177.48 = 149,591.76/x - Step 3: Cross multiply
245,029.61x = 338,177.48 × 149,591.76 - Step 4: Simplify right side
245,029.61x = 50,588,563,677.61 - Step 5: Solve for x
x = 50,588,563,677.61/245,029.61 - Step 6: Final answer
x = 206,458.99
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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.