Finding the Fourth Proportional to 458,349.10, 687,542.28 and 218,339.62
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Solution
The fourth proportional to 458,349.10, 687,542.28 and 218,339.62 is: 327,518.30
Step by Step Solution
- Step 1: Write the proportion equation
458,349.10 : 687,542.28 = 218,339.62 : x - Step 2: Convert to fraction form
458,349.10/687,542.28 = 218,339.62/x - Step 3: Cross multiply
458,349.10x = 687,542.28 × 218,339.62 - Step 4: Simplify right side
458,349.10x = 150,117,720,149.13 - Step 5: Solve for x
x = 150,117,720,149.13/458,349.10 - Step 6: Final answer
x = 327,518.30
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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.