Finding the Fourth Proportional to 457,731.13, 686,697.81 and 154,140.19
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Solution
The fourth proportional to 457,731.13, 686,697.81 and 154,140.19 is: 231,244.34
Step by Step Solution
- Step 1: Write the proportion equation
457,731.13 : 686,697.81 = 154,140.19 : x - Step 2: Convert to fraction form
457,731.13/686,697.81 = 154,140.19/x - Step 3: Cross multiply
457,731.13x = 686,697.81 × 154,140.19 - Step 4: Simplify right side
457,731.13x = 105,847,730,905.98 - Step 5: Solve for x
x = 105,847,730,905.98/457,731.13 - Step 6: Final answer
x = 231,244.34
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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.