Finding the Fourth Proportional to 239,285.66, 330,214.24 and 138,741.98
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Solution
The fourth proportional to 239,285.66, 330,214.24 and 138,741.98 is: 191,463.95
Step by Step Solution
- Step 1: Write the proportion equation
239,285.66 : 330,214.24 = 138,741.98 : x - Step 2: Convert to fraction form
239,285.66/330,214.24 = 138,741.98/x - Step 3: Cross multiply
239,285.66x = 330,214.24 × 138,741.98 - Step 4: Simplify right side
239,285.66x = 45,814,577,481.80 - Step 5: Solve for x
x = 45,814,577,481.80/239,285.66 - Step 6: Final answer
x = 191,463.95
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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.