Finding the Fourth Proportional to 318,659.62, 439,762.80 and 175,432.99
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Solution
The fourth proportional to 318,659.62, 439,762.80 and 175,432.99 is: 242,104.42
Step by Step Solution
- Step 1: Write the proportion equation
318,659.62 : 439,762.80 = 175,432.99 : x - Step 2: Convert to fraction form
318,659.62/439,762.80 = 175,432.99/x - Step 3: Cross multiply
318,659.62x = 439,762.80 × 175,432.99 - Step 4: Simplify right side
318,659.62x = 77,148,902,894.77 - Step 5: Solve for x
x = 77,148,902,894.77/318,659.62 - Step 6: Final answer
x = 242,104.42
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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.