Finding the Fourth Proportional to 385,953.59, 578,695.97 and 172,681.79
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Solution
The fourth proportional to 385,953.59, 578,695.97 and 172,681.79 is: 258,917.80
Step by Step Solution
- Step 1: Write the proportion equation
385,953.59 : 578,695.97 = 172,681.79 : x - Step 2: Convert to fraction form
385,953.59/578,695.97 = 172,681.79/x - Step 3: Cross multiply
385,953.59x = 578,695.97 × 172,681.79 - Step 4: Simplify right side
385,953.59x = 99,930,255,787.44 - Step 5: Solve for x
x = 99,930,255,787.44/385,953.59 - Step 6: Final answer
x = 258,917.80
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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.