Finding the Fourth Proportional to 187,297.63, 280,946.71 and 76,489.63
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Solution
The fourth proportional to 187,297.63, 280,946.71 and 76,489.63 is: 114,734.55
Step by Step Solution
- Step 1: Write the proportion equation
187,297.63 : 280,946.71 = 76,489.63 : x - Step 2: Convert to fraction form
187,297.63/280,946.71 = 76,489.63/x - Step 3: Cross multiply
187,297.63x = 280,946.71 × 76,489.63 - Step 4: Simplify right side
187,297.63x = 21,489,509,897.62 - Step 5: Solve for x
x = 21,489,509,897.62/187,297.63 - Step 6: Final answer
x = 114,734.55
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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.