Finding the Fourth Proportional to 225,021.44, 310,519.68 and 124,417.28
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Solution
The fourth proportional to 225,021.44, 310,519.68 and 124,417.28 is: 171,690.37
Step by Step Solution
- Step 1: Write the proportion equation
225,021.44 : 310,519.68 = 124,417.28 : x - Step 2: Convert to fraction form
225,021.44/310,519.68 = 124,417.28/x - Step 3: Cross multiply
225,021.44x = 310,519.68 × 124,417.28 - Step 4: Simplify right side
225,021.44x = 38,634,013,972.07 - Step 5: Solve for x
x = 38,634,013,972.07/225,021.44 - Step 6: Final answer
x = 171,690.37
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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.