Finding the Fourth Proportional to 318,900.96, 440,081.28 and 175,657.68
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Solution
The fourth proportional to 318,900.96, 440,081.28 and 175,657.68 is: 242,406.47
Step by Step Solution
- Step 1: Write the proportion equation
318,900.96 : 440,081.28 = 175,657.68 : x - Step 2: Convert to fraction form
318,900.96/440,081.28 = 175,657.68/x - Step 3: Cross multiply
318,900.96x = 440,081.28 × 175,657.68 - Step 4: Simplify right side
318,900.96x = 77,303,656,656.23 - Step 5: Solve for x
x = 77,303,656,656.23/318,900.96 - Step 6: Final answer
x = 242,406.47
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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.