Finding the Fourth Proportional to 353,356.10, 487,644.09 and 202,482.26
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Solution
The fourth proportional to 353,356.10, 487,644.09 and 202,482.26 is: 279,432.78
Step by Step Solution
- Step 1: Write the proportion equation
353,356.10 : 487,644.09 = 202,482.26 : x - Step 2: Convert to fraction form
353,356.10/487,644.09 = 202,482.26/x - Step 3: Cross multiply
353,356.10x = 487,644.09 × 202,482.26 - Step 4: Simplify right side
353,356.10x = 98,739,277,418.84 - Step 5: Solve for x
x = 98,739,277,418.84/353,356.10 - Step 6: Final answer
x = 279,432.78
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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.