Finding the Fourth Proportional to 457,911.10, 686,971.28 and 158,391.42
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Solution
The fourth proportional to 457,911.10, 686,971.28 and 158,391.42 is: 237,623.32
Step by Step Solution
- Step 1: Write the proportion equation
457,911.10 : 686,971.28 = 158,391.42 : x - Step 2: Convert to fraction form
457,911.10/686,971.28 = 158,391.42/x - Step 3: Cross multiply
457,911.10x = 686,971.28 × 158,391.42 - Step 4: Simplify right side
457,911.10x = 108,810,356,538.42 - Step 5: Solve for x
x = 108,810,356,538.42/457,911.10 - Step 6: Final answer
x = 237,623.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.