Finding the Fourth Proportional to 254,462.85, 378,905.12 and 245,370.21
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Solution
The fourth proportional to 254,462.85, 378,905.12 and 245,370.21 is: 365,365.82
Step by Step Solution
- Step 1: Write the proportion equation
254,462.85 : 378,905.12 = 245,370.21 : x - Step 2: Convert to fraction form
254,462.85/378,905.12 = 245,370.21/x - Step 3: Cross multiply
254,462.85x = 378,905.12 × 245,370.21 - Step 4: Simplify right side
254,462.85x = 92,972,027,637.62 - Step 5: Solve for x
x = 92,972,027,637.62/254,462.85 - Step 6: Final answer
x = 365,365.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.