Finding the Fourth Proportional to 402,444.57, 555,142.24 and 251,279.13
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Solution
The fourth proportional to 402,444.57, 555,142.24 and 251,279.13 is: 346,620.80
Step by Step Solution
- Step 1: Write the proportion equation
402,444.57 : 555,142.24 = 251,279.13 : x - Step 2: Convert to fraction form
402,444.57/555,142.24 = 251,279.13/x - Step 3: Cross multiply
402,444.57x = 555,142.24 × 251,279.13 - Step 4: Simplify right side
402,444.57x = 139,495,659,093.45 - Step 5: Solve for x
x = 139,495,659,093.45/402,444.57 - Step 6: Final answer
x = 346,620.80
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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.