Finding the Fourth Proportional to 194,887.68, 268,720.80 and 143,974.08
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Solution
The fourth proportional to 194,887.68, 268,720.80 and 143,974.08 is: 198,518.60
Step by Step Solution
- Step 1: Write the proportion equation
194,887.68 : 268,720.80 = 143,974.08 : x - Step 2: Convert to fraction form
194,887.68/268,720.80 = 143,974.08/x - Step 3: Cross multiply
194,887.68x = 268,720.80 × 143,974.08 - Step 4: Simplify right side
194,887.68x = 38,688,829,956.86 - Step 5: Solve for x
x = 38,688,829,956.86/194,887.68 - Step 6: Final answer
x = 198,518.60
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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.