Finding the Fourth Proportional to 225,305.21, 310,921.80 and 124,703.21
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Solution
The fourth proportional to 225,305.21, 310,921.80 and 124,703.21 is: 172,090.77
Step by Step Solution
- Step 1: Write the proportion equation
225,305.21 : 310,921.80 = 124,703.21 : x - Step 2: Convert to fraction form
225,305.21/310,921.80 = 124,703.21/x - Step 3: Cross multiply
225,305.21x = 310,921.80 × 124,703.21 - Step 4: Simplify right side
225,305.21x = 38,772,946,518.98 - Step 5: Solve for x
x = 38,772,946,518.98/225,305.21 - Step 6: Final answer
x = 172,090.77
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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.