Finding the Fourth Proportional to 315,742.21, 473,294.19 and 135,944.92
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Solution
The fourth proportional to 315,742.21, 473,294.19 and 135,944.92 is: 203,779.98
Step by Step Solution
- Step 1: Write the proportion equation
315,742.21 : 473,294.19 = 135,944.92 : x - Step 2: Convert to fraction form
315,742.21/473,294.19 = 135,944.92/x - Step 3: Cross multiply
315,742.21x = 473,294.19 × 135,944.92 - Step 4: Simplify right side
315,742.21x = 64,341,940,796.01 - Step 5: Solve for x
x = 64,341,940,796.01/315,742.21 - Step 6: Final answer
x = 203,779.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.