Finding the Fourth Proportional to 354,209.76, 488,809.08 and 193,065.12
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Solution
The fourth proportional to 354,209.76, 488,809.08 and 193,065.12 is: 266,429.65
Step by Step Solution
- Step 1: Write the proportion equation
354,209.76 : 488,809.08 = 193,065.12 : x - Step 2: Convert to fraction form
354,209.76/488,809.08 = 193,065.12/x - Step 3: Cross multiply
354,209.76x = 488,809.08 × 193,065.12 - Step 4: Simplify right side
354,209.76x = 94,371,983,687.29 - Step 5: Solve for x
x = 94,371,983,687.29/354,209.76 - Step 6: Final answer
x = 266,429.65
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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.