Finding the Fourth Proportional to 458,442.10, 687,572.18 and 230,676.99
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Solution
The fourth proportional to 458,442.10, 687,572.18 and 230,676.99 is: 345,969.70
Step by Step Solution
- Step 1: Write the proportion equation
458,442.10 : 687,572.18 = 230,676.99 : x - Step 2: Convert to fraction form
458,442.10/687,572.18 = 230,676.99/x - Step 3: Cross multiply
458,442.10x = 687,572.18 × 230,676.99 - Step 4: Simplify right side
458,442.10x = 158,607,078,023.40 - Step 5: Solve for x
x = 158,607,078,023.40/458,442.10 - Step 6: Final answer
x = 345,969.70
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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.