Finding the Fourth Proportional to 229,529.08, 316,748.46 and 128,927.80
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Solution
The fourth proportional to 229,529.08, 316,748.46 and 128,927.80 is: 177,919.43
Step by Step Solution
- Step 1: Write the proportion equation
229,529.08 : 316,748.46 = 128,927.80 : x - Step 2: Convert to fraction form
229,529.08/316,748.46 = 128,927.80/x - Step 3: Cross multiply
229,529.08x = 316,748.46 × 128,927.80 - Step 4: Simplify right side
229,529.08x = 40,837,682,101.19 - Step 5: Solve for x
x = 40,837,682,101.19/229,529.08 - Step 6: Final answer
x = 177,919.43
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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.