Finding the Fourth Proportional to 260,380.41, 359,307.99 and 145,639.18
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Solution
The fourth proportional to 260,380.41, 359,307.99 and 145,639.18 is: 200,972.57
Step by Step Solution
- Step 1: Write the proportion equation
260,380.41 : 359,307.99 = 145,639.18 : x - Step 2: Convert to fraction form
260,380.41/359,307.99 = 145,639.18/x - Step 3: Cross multiply
260,380.41x = 359,307.99 × 145,639.18 - Step 4: Simplify right side
260,380.41x = 52,329,321,031.05 - Step 5: Solve for x
x = 52,329,321,031.05/260,380.41 - Step 6: Final answer
x = 200,972.57
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.