Finding the Fourth Proportional to 328,789.13, 453,728.99 and 177,886.13
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Solution
The fourth proportional to 328,789.13, 453,728.99 and 177,886.13 is: 245,482.85
Step by Step Solution
- Step 1: Write the proportion equation
328,789.13 : 453,728.99 = 177,886.13 : x - Step 2: Convert to fraction form
328,789.13/453,728.99 = 177,886.13/x - Step 3: Cross multiply
328,789.13x = 453,728.99 × 177,886.13 - Step 4: Simplify right side
328,789.13x = 80,712,092,275.98 - Step 5: Solve for x
x = 80,712,092,275.98/328,789.13 - Step 6: Final answer
x = 245,482.85
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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.