Finding the Fourth Proportional to 318,811.68, 439,956.81 and 175,568.67
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Solution
The fourth proportional to 318,811.68, 439,956.81 and 175,568.67 is: 242,282.94
Step by Step Solution
- Step 1: Write the proportion equation
318,811.68 : 439,956.81 = 175,568.67 : x - Step 2: Convert to fraction form
318,811.68/439,956.81 = 175,568.67/x - Step 3: Cross multiply
318,811.68x = 439,956.81 × 175,568.67 - Step 4: Simplify right side
318,811.68x = 77,242,631,989.14 - Step 5: Solve for x
x = 77,242,631,989.14/318,811.68 - Step 6: Final answer
x = 242,282.94
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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.