Finding the Fourth Proportional to 259,605.70, 389,408.55 and 207,117.70
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Solution
The fourth proportional to 259,605.70, 389,408.55 and 207,117.70 is: 310,676.55
Step by Step Solution
- Step 1: Write the proportion equation
259,605.70 : 389,408.55 = 207,117.70 : x - Step 2: Convert to fraction form
259,605.70/389,408.55 = 207,117.70/x - Step 3: Cross multiply
259,605.70x = 389,408.55 × 207,117.70 - Step 4: Simplify right side
259,605.70x = 80,653,403,236.34 - Step 5: Solve for x
x = 80,653,403,236.34/259,605.70 - Step 6: Final answer
x = 310,676.55
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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.