Finding the Fourth Proportional to 346,542.68, 478,228.90 and 195,639.68
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Solution
The fourth proportional to 346,542.68, 478,228.90 and 195,639.68 is: 269,982.76
Step by Step Solution
- Step 1: Write the proportion equation
346,542.68 : 478,228.90 = 195,639.68 : x - Step 2: Convert to fraction form
346,542.68/478,228.90 = 195,639.68/x - Step 3: Cross multiply
346,542.68x = 478,228.90 × 195,639.68 - Step 4: Simplify right side
346,542.68x = 93,560,548,415.91 - Step 5: Solve for x
x = 93,560,548,415.91/346,542.68 - Step 6: Final answer
x = 269,982.76
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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.