Finding the Fourth Proportional to 259,972.20, 389,302.20 and 207,484.20
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Solution
The fourth proportional to 259,972.20, 389,302.20 and 207,484.20 is: 310,702.67
Step by Step Solution
- Step 1: Write the proportion equation
259,972.20 : 389,302.20 = 207,484.20 : x - Step 2: Convert to fraction form
259,972.20/389,302.20 = 207,484.20/x - Step 3: Cross multiply
259,972.20x = 389,302.20 × 207,484.20 - Step 4: Simplify right side
259,972.20x = 80,774,055,525.24 - Step 5: Solve for x
x = 80,774,055,525.24/259,972.20 - Step 6: Final answer
x = 310,702.67
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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.