Finding the Fourth Proportional to 357,644.70, 536,467.05 and 318,246.30
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Solution
The fourth proportional to 357,644.70, 536,467.05 and 318,246.30 is: 477,369.45
Step by Step Solution
- Step 1: Write the proportion equation
357,644.70 : 536,467.05 = 318,246.30 : x - Step 2: Convert to fraction form
357,644.70/536,467.05 = 318,246.30/x - Step 3: Cross multiply
357,644.70x = 536,467.05 × 318,246.30 - Step 4: Simplify right side
357,644.70x = 170,728,653,734.42 - Step 5: Solve for x
x = 170,728,653,734.42/357,644.70 - Step 6: Final answer
x = 477,369.45
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1.5x scale
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.