Finding the Fourth Proportional to 351,764.21, 485,432.71 and 190,615.11
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Solution
The fourth proportional to 351,764.21, 485,432.71 and 190,615.11 is: 263,047.82
Step by Step Solution
- Step 1: Write the proportion equation
351,764.21 : 485,432.71 = 190,615.11 : x - Step 2: Convert to fraction form
351,764.21/485,432.71 = 190,615.11/x - Step 3: Cross multiply
351,764.21x = 485,432.71 × 190,615.11 - Step 4: Simplify right side
351,764.21x = 92,530,808,937.71 - Step 5: Solve for x
x = 92,530,808,937.71/351,764.21 - Step 6: Final answer
x = 263,047.82
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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.