Finding the Fourth Proportional to 509,368.42, 764,051.70 and 135,391.42
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Solution
The fourth proportional to 509,368.42, 764,051.70 and 135,391.42 is: 203,086.88
Step by Step Solution
- Step 1: Write the proportion equation
509,368.42 : 764,051.70 = 135,391.42 : x - Step 2: Convert to fraction form
509,368.42/764,051.70 = 135,391.42/x - Step 3: Cross multiply
509,368.42x = 764,051.70 × 135,391.42 - Step 4: Simplify right side
509,368.42x = 103,446,044,616.41 - Step 5: Solve for x
x = 103,446,044,616.41/509,368.42 - Step 6: Final answer
x = 203,086.88
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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.