Finding the Fourth Proportional to 447,354.34, 617,351.65 and 243,406.70
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Solution
The fourth proportional to 447,354.34, 617,351.65 and 243,406.70 is: 335,902.69
Step by Step Solution
- Step 1: Write the proportion equation
447,354.34 : 617,351.65 = 243,406.70 : x - Step 2: Convert to fraction form
447,354.34/617,351.65 = 243,406.70/x - Step 3: Cross multiply
447,354.34x = 617,351.65 × 243,406.70 - Step 4: Simplify right side
447,354.34x = 150,267,525,434.13 - Step 5: Solve for x
x = 150,267,525,434.13/447,354.34 - Step 6: Final answer
x = 335,902.69
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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.