Finding the Fourth Proportional to 402,937.70, 604,872.15 and 216,313.70
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Solution
The fourth proportional to 402,937.70, 604,872.15 and 216,313.70 is: 324,720.50
Step by Step Solution
- Step 1: Write the proportion equation
402,937.70 : 604,872.15 = 216,313.70 : x - Step 2: Convert to fraction form
402,937.70/604,872.15 = 216,313.70/x - Step 3: Cross multiply
402,937.70x = 604,872.15 × 216,313.70 - Step 4: Simplify right side
402,937.70x = 130,842,132,793.46 - Step 5: Solve for x
x = 130,842,132,793.46/402,937.70 - Step 6: Final answer
x = 324,720.50
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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.