Finding the Fourth Proportional to 354,663.51, 488,863.76 and 239,900.23
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Solution
The fourth proportional to 354,663.51, 488,863.76 and 239,900.23 is: 330,675.48
Step by Step Solution
- Step 1: Write the proportion equation
354,663.51 : 488,863.76 = 239,900.23 : x - Step 2: Convert to fraction form
354,663.51/488,863.76 = 239,900.23/x - Step 3: Cross multiply
354,663.51x = 488,863.76 × 239,900.23 - Step 4: Simplify right side
354,663.51x = 117,278,527,874.24 - Step 5: Solve for x
x = 117,278,527,874.24/354,663.51 - Step 6: Final answer
x = 330,675.48
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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.