Finding the Fourth Proportional to 228,977.16, 315,972.62 and 126,992.96
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Solution
The fourth proportional to 228,977.16, 315,972.62 and 126,992.96 is: 175,241.49
Step by Step Solution
- Step 1: Write the proportion equation
228,977.16 : 315,972.62 = 126,992.96 : x - Step 2: Convert to fraction form
228,977.16/315,972.62 = 126,992.96/x - Step 3: Cross multiply
228,977.16x = 315,972.62 × 126,992.96 - Step 4: Simplify right side
228,977.16x = 40,126,298,292.76 - Step 5: Solve for x
x = 40,126,298,292.76/228,977.16 - Step 6: Final answer
x = 175,241.49
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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.