Finding the Fourth Proportional to 245,537.20, 368,305.80 and 162,431.20
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Solution
The fourth proportional to 245,537.20, 368,305.80 and 162,431.20 is: 243,646.80
Step by Step Solution
- Step 1: Write the proportion equation
245,537.20 : 368,305.80 = 162,431.20 : x - Step 2: Convert to fraction form
245,537.20/368,305.80 = 162,431.20/x - Step 3: Cross multiply
245,537.20x = 368,305.80 × 162,431.20 - Step 4: Simplify right side
245,537.20x = 59,824,353,060.96 - Step 5: Solve for x
x = 59,824,353,060.96/245,537.20 - Step 6: Final answer
x = 243,646.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.