Finding the Fourth Proportional to 515,005.60, 772,289.70 and 248,847.70
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Solution
The fourth proportional to 515,005.60, 772,289.70 and 248,847.70 is: 373,165.88
Step by Step Solution
- Step 1: Write the proportion equation
515,005.60 : 772,289.70 = 248,847.70 : x - Step 2: Convert to fraction form
515,005.60/772,289.70 = 248,847.70/x - Step 3: Cross multiply
515,005.60x = 772,289.70 × 248,847.70 - Step 4: Simplify right side
515,005.60x = 192,182,515,578.69 - Step 5: Solve for x
x = 192,182,515,578.69/515,005.60 - Step 6: Final answer
x = 373,165.88
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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.