Finding the Fourth Proportional to 225,115.35, 310,646.12 and 123,121.77
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Solution
The fourth proportional to 225,115.35, 310,646.12 and 123,121.77 is: 169,900.90
Step by Step Solution
- Step 1: Write the proportion equation
225,115.35 : 310,646.12 = 123,121.77 : x - Step 2: Convert to fraction form
225,115.35/310,646.12 = 123,121.77/x - Step 3: Cross multiply
225,115.35x = 310,646.12 × 123,121.77 - Step 4: Simplify right side
225,115.35x = 38,247,299,522.42 - Step 5: Solve for x
x = 38,247,299,522.42/225,115.35 - Step 6: Final answer
x = 169,900.90
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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.