Finding the Fourth Proportional to 404,882.19, 558,623.12 and 243,685.71
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Solution
The fourth proportional to 404,882.19, 558,623.12 and 243,685.71 is: 336,217.48
Step by Step Solution
- Step 1: Write the proportion equation
404,882.19 : 558,623.12 = 243,685.71 : x - Step 2: Convert to fraction form
404,882.19/558,623.12 = 243,685.71/x - Step 3: Cross multiply
404,882.19x = 558,623.12 × 243,685.71 - Step 4: Simplify right side
404,882.19x = 136,128,470,401.19 - Step 5: Solve for x
x = 136,128,470,401.19/404,882.19 - Step 6: Final answer
x = 336,217.48
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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.