Finding the Fourth Proportional to 458,042.85, 686,742.36 and 201,753.80
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Solution
The fourth proportional to 458,042.85, 686,742.36 and 201,753.80 is: 302,488.90
Step by Step Solution
- Step 1: Write the proportion equation
458,042.85 : 686,742.36 = 201,753.80 : x - Step 2: Convert to fraction form
458,042.85/686,742.36 = 201,753.80/x - Step 3: Cross multiply
458,042.85x = 686,742.36 × 201,753.80 - Step 4: Simplify right side
458,042.85x = 138,552,877,317.26 - Step 5: Solve for x
x = 138,552,877,317.26/458,042.85 - Step 6: Final answer
x = 302,488.90
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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.