Finding the Fourth Proportional to 408,493.36, 563,490.75 and 245,107.63
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Solution
The fourth proportional to 408,493.36, 563,490.75 and 245,107.63 is: 338,110.47
Step by Step Solution
- Step 1: Write the proportion equation
408,493.36 : 563,490.75 = 245,107.63 : x - Step 2: Convert to fraction form
408,493.36/563,490.75 = 245,107.63/x - Step 3: Cross multiply
408,493.36x = 563,490.75 × 245,107.63 - Step 4: Simplify right side
408,493.36x = 138,115,882,259.42 - Step 5: Solve for x
x = 138,115,882,259.42/408,493.36 - Step 6: Final answer
x = 338,110.47
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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.