Finding the Fourth Proportional to 228,358.97, 315,125.68 and 126,374.88
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Solution
The fourth proportional to 228,358.97, 315,125.68 and 126,374.88 is: 174,391.98
Step by Step Solution
- Step 1: Write the proportion equation
228,358.97 : 315,125.68 = 126,374.88 : x - Step 2: Convert to fraction form
228,358.97/315,125.68 = 126,374.88/x - Step 3: Cross multiply
228,358.97x = 315,125.68 × 126,374.88 - Step 4: Simplify right side
228,358.97x = 39,823,971,719.66 - Step 5: Solve for x
x = 39,823,971,719.66/228,358.97 - Step 6: Final answer
x = 174,391.98
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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.