Finding the Fourth Proportional to 509,200.80, 763,911.36 and 193,663.68
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Solution
The fourth proportional to 509,200.80, 763,911.36 and 193,663.68 is: 290,537.42
Step by Step Solution
- Step 1: Write the proportion equation
509,200.80 : 763,911.36 = 193,663.68 : x - Step 2: Convert to fraction form
509,200.80/763,911.36 = 193,663.68/x - Step 3: Cross multiply
509,200.80x = 763,911.36 × 193,663.68 - Step 4: Simplify right side
509,200.80x = 147,941,885,171.41 - Step 5: Solve for x
x = 147,941,885,171.41/509,200.80 - Step 6: Final answer
x = 290,537.42
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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.