Finding the Fourth Proportional to 224,778.11, 310,208.13 and 129,282.75
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Solution
The fourth proportional to 224,778.11, 310,208.13 and 129,282.75 is: 178,418.45
Step by Step Solution
- Step 1: Write the proportion equation
224,778.11 : 310,208.13 = 129,282.75 : x - Step 2: Convert to fraction form
224,778.11/310,208.13 = 129,282.75/x - Step 3: Cross multiply
224,778.11x = 310,208.13 × 129,282.75 - Step 4: Simplify right side
224,778.11x = 40,104,560,118.76 - Step 5: Solve for x
x = 40,104,560,118.76/224,778.11 - Step 6: Final answer
x = 178,418.45
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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.