Finding the Fourth Proportional to 355,555.56, 490,681.92 and 194,400.99
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Solution
The fourth proportional to 355,555.56, 490,681.92 and 194,400.99 is: 268,281.70
Step by Step Solution
- Step 1: Write the proportion equation
355,555.56 : 490,681.92 = 194,400.99 : x - Step 2: Convert to fraction form
355,555.56/490,681.92 = 194,400.99/x - Step 3: Cross multiply
355,555.56x = 490,681.92 × 194,400.99 - Step 4: Simplify right side
355,555.56x = 95,389,051,023.10 - Step 5: Solve for x
x = 95,389,051,023.10/355,555.56 - Step 6: Final answer
x = 268,281.70
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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.