Finding the Fourth Proportional to 225,305.84, 310,917.36 and 123,328.80
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Solution
The fourth proportional to 225,305.84, 310,917.36 and 123,328.80 is: 170,191.17
Step by Step Solution
- Step 1: Write the proportion equation
225,305.84 : 310,917.36 = 123,328.80 : x - Step 2: Convert to fraction form
225,305.84/310,917.36 = 123,328.80/x - Step 3: Cross multiply
225,305.84x = 310,917.36 × 123,328.80 - Step 4: Simplify right side
225,305.84x = 38,345,064,907.97 - Step 5: Solve for x
x = 38,345,064,907.97/225,305.84 - Step 6: Final answer
x = 170,191.17
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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.