Finding the Fourth Proportional to 447,590.30, 617,682.50 and 243,647.09
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Solution
The fourth proportional to 447,590.30, 617,682.50 and 243,647.09 is: 336,237.27
Step by Step Solution
- Step 1: Write the proportion equation
447,590.30 : 617,682.50 = 243,647.09 : x - Step 2: Convert to fraction form
447,590.30/617,682.50 = 243,647.09/x - Step 3: Cross multiply
447,590.30x = 617,682.50 × 243,647.09 - Step 4: Simplify right side
447,590.30x = 150,496,539,362.28 - Step 5: Solve for x
x = 150,496,539,362.28/447,590.30 - Step 6: Final answer
x = 336,237.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.