Finding the Fourth Proportional to 319,118.13, 440,303.45 and 202,789.17
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Solution
The fourth proportional to 319,118.13, 440,303.45 and 202,789.17 is: 279,798.49
Step by Step Solution
- Step 1: Write the proportion equation
319,118.13 : 440,303.45 = 202,789.17 : x - Step 2: Convert to fraction form
319,118.13/440,303.45 = 202,789.17/x - Step 3: Cross multiply
319,118.13x = 440,303.45 × 202,789.17 - Step 4: Simplify right side
319,118.13x = 89,288,770,159.69 - Step 5: Solve for x
x = 89,288,770,159.69/319,118.13 - Step 6: Final answer
x = 279,798.49
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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.