Finding the Fourth Proportional to 215,934.62, 297,989.96 and 125,308.98
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Solution
The fourth proportional to 215,934.62, 297,989.96 and 125,308.98 is: 172,926.50
Step by Step Solution
- Step 1: Write the proportion equation
215,934.62 : 297,989.96 = 125,308.98 : x - Step 2: Convert to fraction form
215,934.62/297,989.96 = 125,308.98/x - Step 3: Cross multiply
215,934.62x = 297,989.96 × 125,308.98 - Step 4: Simplify right side
215,934.62x = 37,340,817,311.30 - Step 5: Solve for x
x = 37,340,817,311.30/215,934.62 - Step 6: Final answer
x = 172,926.50
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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.