Finding the Fourth Proportional to 215,809.80, 297,766.26 and 130,924.68
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Solution
The fourth proportional to 215,809.80, 297,766.26 and 130,924.68 is: 180,644.96
Step by Step Solution
- Step 1: Write the proportion equation
215,809.80 : 297,766.26 = 130,924.68 : x - Step 2: Convert to fraction form
215,809.80/297,766.26 = 130,924.68/x - Step 3: Cross multiply
215,809.80x = 297,766.26 × 130,924.68 - Step 4: Simplify right side
215,809.80x = 38,984,952,305.30 - Step 5: Solve for x
x = 38,984,952,305.30/215,809.80 - Step 6: Final answer
x = 180,644.96
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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.