Finding the Fourth Proportional to 260,439.26, 359,420.16 and 145,711.06
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Solution
The fourth proportional to 260,439.26, 359,420.16 and 145,711.06 is: 201,089.09
Step by Step Solution
- Step 1: Write the proportion equation
260,439.26 : 359,420.16 = 145,711.06 : x - Step 2: Convert to fraction form
260,439.26/359,420.16 = 145,711.06/x - Step 3: Cross multiply
260,439.26x = 359,420.16 × 145,711.06 - Step 4: Simplify right side
260,439.26x = 52,371,492,498.97 - Step 5: Solve for x
x = 52,371,492,498.97/260,439.26 - Step 6: Final answer
x = 201,089.09
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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.