Finding the Fourth Proportional to 391,120.48, 539,701.60 and 219,014.52
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Solution
The fourth proportional to 391,120.48, 539,701.60 and 219,014.52 is: 302,215.03
Step by Step Solution
- Step 1: Write the proportion equation
391,120.48 : 539,701.60 = 219,014.52 : x - Step 2: Convert to fraction form
391,120.48/539,701.60 = 219,014.52/x - Step 3: Cross multiply
391,120.48x = 539,701.60 × 219,014.52 - Step 4: Simplify right side
391,120.48x = 118,202,486,867.23 - Step 5: Solve for x
x = 118,202,486,867.23/391,120.48 - Step 6: Final answer
x = 302,215.03
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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.