Finding the Fourth Proportional to 391,116.08, 539,695.58 and 219,010.12
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Solution
The fourth proportional to 391,116.08, 539,695.58 and 219,010.12 is: 302,208.99
Step by Step Solution
- Step 1: Write the proportion equation
391,116.08 : 539,695.58 = 219,010.12 : x - Step 2: Convert to fraction form
391,116.08/539,695.58 = 219,010.12/x - Step 3: Cross multiply
391,116.08x = 539,695.58 × 219,010.12 - Step 4: Simplify right side
391,116.08x = 118,198,793,739.27 - Step 5: Solve for x
x = 118,198,793,739.27/391,116.08 - Step 6: Final answer
x = 302,208.99
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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.