Finding the Fourth Proportional to 561,678.75, 842,518.13 and 187,701.75
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Solution
The fourth proportional to 561,678.75, 842,518.13 and 187,701.75 is: 281,552.63
Step by Step Solution
- Step 1: Write the proportion equation
561,678.75 : 842,518.13 = 187,701.75 : x - Step 2: Convert to fraction form
561,678.75/842,518.13 = 187,701.75/x - Step 3: Cross multiply
561,678.75x = 842,518.13 × 187,701.75 - Step 4: Simplify right side
561,678.75x = 158,142,126,469.22 - Step 5: Solve for x
x = 158,142,126,469.22/561,678.75 - Step 6: Final answer
x = 281,552.63
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1.5x scale
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.