Finding the Fourth Proportional to 396,409.98, 547,072.74 and 224,328.06
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Solution
The fourth proportional to 396,409.98, 547,072.74 and 224,328.06 is: 309,587.98
Step by Step Solution
- Step 1: Write the proportion equation
396,409.98 : 547,072.74 = 224,328.06 : x - Step 2: Convert to fraction form
396,409.98/547,072.74 = 224,328.06/x - Step 3: Cross multiply
396,409.98x = 547,072.74 × 224,328.06 - Step 4: Simplify right side
396,409.98x = 122,723,766,443.08 - Step 5: Solve for x
x = 122,723,766,443.08/396,409.98 - Step 6: Final answer
x = 309,587.98
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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.