Finding the Fourth Proportional to 429,747.84, 644,621.76 and 163,446.84
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Solution
The fourth proportional to 429,747.84, 644,621.76 and 163,446.84 is: 245,170.26
Step by Step Solution
- Step 1: Write the proportion equation
429,747.84 : 644,621.76 = 163,446.84 : x - Step 2: Convert to fraction form
429,747.84/644,621.76 = 163,446.84/x - Step 3: Cross multiply
429,747.84x = 644,621.76 × 163,446.84 - Step 4: Simplify right side
429,747.84x = 105,361,389,667.24 - Step 5: Solve for x
x = 105,361,389,667.24/429,747.84 - Step 6: Final answer
x = 245,170.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.