Finding the Fourth Proportional to 228,899.84, 315,876.12 and 126,925.70
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Solution
The fourth proportional to 228,899.84, 315,876.12 and 126,925.70 is: 175,154.33
Step by Step Solution
- Step 1: Write the proportion equation
228,899.84 : 315,876.12 = 126,925.70 : x - Step 2: Convert to fraction form
228,899.84/315,876.12 = 126,925.70/x - Step 3: Cross multiply
228,899.84x = 315,876.12 × 126,925.70 - Step 4: Simplify right side
228,899.84x = 40,092,797,644.28 - Step 5: Solve for x
x = 40,092,797,644.28/228,899.84 - Step 6: Final answer
x = 175,154.33
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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.