Finding the Fourth Proportional to 259,798.70, 389,698.06 and 207,310.70
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Solution
The fourth proportional to 259,798.70, 389,698.06 and 207,310.70 is: 310,966.06
Step by Step Solution
- Step 1: Write the proportion equation
259,798.70 : 389,698.06 = 207,310.70 : x - Step 2: Convert to fraction form
259,798.70/389,698.06 = 207,310.70/x - Step 3: Cross multiply
259,798.70x = 389,698.06 × 207,310.70 - Step 4: Simplify right side
259,798.70x = 80,788,577,607.24 - Step 5: Solve for x
x = 80,788,577,607.24/259,798.70 - Step 6: Final answer
x = 310,966.06
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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.