Finding the Fourth Proportional to 283,790.08, 391,630.08 and 156,467.80
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Solution
The fourth proportional to 283,790.08, 391,630.08 and 156,467.80 is: 215,925.44
Step by Step Solution
- Step 1: Write the proportion equation
283,790.08 : 391,630.08 = 156,467.80 : x - Step 2: Convert to fraction form
283,790.08/391,630.08 = 156,467.80/x - Step 3: Cross multiply
283,790.08x = 391,630.08 × 156,467.80 - Step 4: Simplify right side
283,790.08x = 61,277,497,031.42 - Step 5: Solve for x
x = 61,277,497,031.42/283,790.08 - Step 6: Final answer
x = 215,925.44
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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.