Finding the Fourth Proportional to 391,259.12, 586,911.73 and 110,752.88
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Solution
The fourth proportional to 391,259.12, 586,911.73 and 110,752.88 is: 166,135.84
Step by Step Solution
- Step 1: Write the proportion equation
391,259.12 : 586,911.73 = 110,752.88 : x - Step 2: Convert to fraction form
391,259.12/586,911.73 = 110,752.88/x - Step 3: Cross multiply
391,259.12x = 586,911.73 × 110,752.88 - Step 4: Simplify right side
391,259.12x = 65,002,164,403.28 - Step 5: Solve for x
x = 65,002,164,403.28/391,259.12 - Step 6: Final answer
x = 166,135.84
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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.