Finding the Fourth Proportional to 408,423.77, 563,542.08 and 238,625.09
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Solution
The fourth proportional to 408,423.77, 563,542.08 and 238,625.09 is: 329,254.29
Step by Step Solution
- Step 1: Write the proportion equation
408,423.77 : 563,542.08 = 238,625.09 : x - Step 2: Convert to fraction form
408,423.77/563,542.08 = 238,625.09/x - Step 3: Cross multiply
408,423.77x = 563,542.08 × 238,625.09 - Step 4: Simplify right side
408,423.77x = 134,475,279,558.79 - Step 5: Solve for x
x = 134,475,279,558.79/408,423.77 - Step 6: Final answer
x = 329,254.29
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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.