Finding the Fourth Proportional to 513,193.88, 708,178.94 and 283,737.90
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Solution
The fourth proportional to 513,193.88, 708,178.94 and 283,737.90 is: 391,542.48
Step by Step Solution
- Step 1: Write the proportion equation
513,193.88 : 708,178.94 = 283,737.90 : x - Step 2: Convert to fraction form
513,193.88/708,178.94 = 283,737.90/x - Step 3: Cross multiply
513,193.88x = 708,178.94 × 283,737.90 - Step 4: Simplify right side
513,193.88x = 200,937,205,259.83 - Step 5: Solve for x
x = 200,937,205,259.83/513,193.88 - Step 6: Final answer
x = 391,542.48
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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.