Finding the Fourth Proportional to 308,298.23, 425,397.13 and 172,288.70
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Solution
The fourth proportional to 308,298.23, 425,397.13 and 172,288.70 is: 237,727.99
Step by Step Solution
- Step 1: Write the proportion equation
308,298.23 : 425,397.13 = 172,288.70 : x - Step 2: Convert to fraction form
308,298.23/425,397.13 = 172,288.70/x - Step 3: Cross multiply
308,298.23x = 425,397.13 × 172,288.70 - Step 4: Simplify right side
308,298.23x = 73,291,118,511.43 - Step 5: Solve for x
x = 73,291,118,511.43/308,298.23 - Step 6: Final answer
x = 237,727.99
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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.