Finding the Fourth Proportional to 355,701.80, 490,864.91 and 194,559.99
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Solution
The fourth proportional to 355,701.80, 490,864.91 and 194,559.99 is: 268,490.83
Step by Step Solution
- Step 1: Write the proportion equation
355,701.80 : 490,864.91 = 194,559.99 : x - Step 2: Convert to fraction form
355,701.80/490,864.91 = 194,559.99/x - Step 3: Cross multiply
355,701.80x = 490,864.91 × 194,559.99 - Step 4: Simplify right side
355,701.80x = 95,502,671,008.15 - Step 5: Solve for x
x = 95,502,671,008.15/355,701.80 - Step 6: Final answer
x = 268,490.83
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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.