Finding the Fourth Proportional to 306,816.99, 423,045.16 and 210,067.76
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Solution
The fourth proportional to 306,816.99, 423,045.16 and 210,067.76 is: 289,645.45
Step by Step Solution
- Step 1: Write the proportion equation
306,816.99 : 423,045.16 = 210,067.76 : x - Step 2: Convert to fraction form
306,816.99/423,045.16 = 210,067.76/x - Step 3: Cross multiply
306,816.99x = 423,045.16 × 210,067.76 - Step 4: Simplify right side
306,816.99x = 88,868,146,499.65 - Step 5: Solve for x
x = 88,868,146,499.65/306,816.99 - Step 6: Final answer
x = 289,645.45
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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.