Finding the Fourth Proportional to 386,658.72, 579,848.58 and 133,870.68
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Solution
The fourth proportional to 386,658.72, 579,848.58 and 133,870.68 is: 200,757.72
Step by Step Solution
- Step 1: Write the proportion equation
386,658.72 : 579,848.58 = 133,870.68 : x - Step 2: Convert to fraction form
386,658.72/579,848.58 = 133,870.68/x - Step 3: Cross multiply
386,658.72x = 579,848.58 × 133,870.68 - Step 4: Simplify right side
386,658.72x = 77,624,723,701.63 - Step 5: Solve for x
x = 77,624,723,701.63/386,658.72 - Step 6: Final answer
x = 200,757.72
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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.