Finding the Fourth Proportional to 447,586.42, 617,677.14 and 243,643.21
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Solution
The fourth proportional to 447,586.42, 617,677.14 and 243,643.21 is: 336,231.92
Step by Step Solution
- Step 1: Write the proportion equation
447,586.42 : 617,677.14 = 243,643.21 : x - Step 2: Convert to fraction form
447,586.42/617,677.14 = 243,643.21/x - Step 3: Cross multiply
447,586.42x = 617,677.14 × 243,643.21 - Step 4: Simplify right side
447,586.42x = 150,492,841,133.22 - Step 5: Solve for x
x = 150,492,841,133.22/447,586.42 - Step 6: Final answer
x = 336,231.92
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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.