Finding the Fourth Proportional to 318,807.42, 439,936.68 and 175,539.48
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Solution
The fourth proportional to 318,807.42, 439,936.68 and 175,539.48 is: 242,234.81
Step by Step Solution
- Step 1: Write the proportion equation
318,807.42 : 439,936.68 = 175,539.48 : x - Step 2: Convert to fraction form
318,807.42/439,936.68 = 175,539.48/x - Step 3: Cross multiply
318,807.42x = 439,936.68 × 175,539.48 - Step 4: Simplify right side
318,807.42x = 77,226,256,040.13 - Step 5: Solve for x
x = 77,226,256,040.13/318,807.42 - Step 6: Final answer
x = 242,234.81
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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.