Finding the Fourth Proportional to 240,444.91, 331,817.46 and 138,488.68
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Solution
The fourth proportional to 240,444.91, 331,817.46 and 138,488.68 is: 191,116.38
Step by Step Solution
- Step 1: Write the proportion equation
240,444.91 : 331,817.46 = 138,488.68 : x - Step 2: Convert to fraction form
240,444.91/331,817.46 = 138,488.68/x - Step 3: Cross multiply
240,444.91x = 331,817.46 × 138,488.68 - Step 4: Simplify right side
240,444.91x = 45,952,960,377.27 - Step 5: Solve for x
x = 45,952,960,377.27/240,444.91 - Step 6: Final answer
x = 191,116.38
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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.