Finding the Fourth Proportional to 383,615.80, 575,423.70 and 99,305.80
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Solution
The fourth proportional to 383,615.80, 575,423.70 and 99,305.80 is: 148,958.70
Step by Step Solution
- Step 1: Write the proportion equation
383,615.80 : 575,423.70 = 99,305.80 : x - Step 2: Convert to fraction form
383,615.80/575,423.70 = 99,305.80/x - Step 3: Cross multiply
383,615.80x = 575,423.70 × 99,305.80 - Step 4: Simplify right side
383,615.80x = 57,142,910,867.46 - Step 5: Solve for x
x = 57,142,910,867.46/383,615.80 - Step 6: Final answer
x = 148,958.70
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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.