Finding the Fourth Proportional to 236,247.76, 326,021.11 and 128,817.53
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Solution
The fourth proportional to 236,247.76, 326,021.11 and 128,817.53 is: 177,767.76
Step by Step Solution
- Step 1: Write the proportion equation
236,247.76 : 326,021.11 = 128,817.53 : x - Step 2: Convert to fraction form
236,247.76/326,021.11 = 128,817.53/x - Step 3: Cross multiply
236,247.76x = 326,021.11 × 128,817.53 - Step 4: Simplify right side
236,247.76x = 41,997,234,118.06 - Step 5: Solve for x
x = 41,997,234,118.06/236,247.76 - Step 6: Final answer
x = 177,767.76
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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.