Finding the Fourth Proportional to 393,303.60, 542,619 and 232,077.96
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Solution
The fourth proportional to 393,303.60, 542,619 and 232,077.96 is: 320,184.99
Step by Step Solution
- Step 1: Write the proportion equation
393,303.60 : 542,619 = 232,077.96 : x - Step 2: Convert to fraction form
393,303.60/542,619 = 232,077.96/x - Step 3: Cross multiply
393,303.60x = 542,619 × 232,077.96 - Step 4: Simplify right side
393,303.60x = 125,929,910,577.24 - Step 5: Solve for x
x = 125,929,910,577.24/393,303.60 - Step 6: Final answer
x = 320,184.99
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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.